"When the World will be Converted" by Spencer W. Kimball: Perhaps the most classic article on LDS missionary work of all time
"On Tracting" by B.H. Roberts: Keys to effective finding efforts through tracting.
"Lock your Heart" by Spencer W. Kimball: A talk on why it is absolutely imperative for missionaries to lock their hearts throughout their missions.
"Labels" (excerpt) Thomas S. Monson: A real-life story of dramatic improvements in missionary success -- based on attitude, preparation, and work ethic.
LDS Missionary Talks by General Authorities in LDS Church News 1989-2000.
March
4, 2000 Every convert 'a great & serious responsibility'
Gordon B. Hinckley
June
26, 1999 Mission presidents receive counsel Thomas S. Monson
& more
June
26, 1999 Have positive attitude in missionary work James E.
Faust
April
10, 1999 Start at 'headwaters' to ensure activity Thomas S.
Monson
February
27, 1999 Members: key to missionary success Gordon B. Hinckley
July
4, 1998 Unnecessary to lose any who are baptized Gordon B. Hinckley
July
4, 1998 Take every opportunity to share the gospel Gordon B. Hinckley
July
4, 1998 Missionary force, membership must cooperate Gordon B. Hinckley
June
27, 1998 `May testimonies ring forth with power' James E. Faust
May
30, 1998 Media messages open doors to teaching M. Russell Ballard
November
29, 1997 Strengthening new members Gordon B. Hinckley
July
5, 1997 `Only as we sacrifice do we move forward' Gordon B. Hinckley
June
28, 1997 Missionaries need personal testimony James E. Faust
June
28, 1997 Joys, rewards of missionary service Thomas S. Monson
June
29, 1996 The Five M's of Missionary Work Thomas S. Monson
June
29, 1996 Realize Expectations, Missionaries Counseled Thomas
S. Monson
June
29, 1996 Inspiration for New Leaders Gordon B. Hinckley
June
29, 1996 Time-Tested Principles of Conversion James E. Faust
December
23, 1995 Missionaries Urged to Gain Ten Gifts Gordon B. Hinckley
July
1, 1995 Importance for Missionaries to Rely on Spirit James
E. Faust
July
1, 1995 Missionary Work: 'A Great Miracle' Gordon B. Hinckley
June
24, 1995 `World hungers for gospel message' Thomas S. Monson
April
29, 1995 How to Help Those who are Less Active [non-GA contributors]
September
17, 1994 'Make Calling Focus of Your Mission' Howard W. Hunter
June
25, 1994 Address to Mission Leaders H.W. Hunter, T.S. Monson
July
2, 1994 Preaching the Gospel is Founded on Love Gordon B. Hinckley
July
2, 1994 Apostles Counsel Embarking Leaders
July
3, 1993 Prepare for 'Greatest Experience' Thomas S. Monson
July
3, 1993 Timely Counsel from Members of the Twelve
June
26, 1993 `Missionary Work Infuses Vitality' Gordon B. Hinckley
July
4, 1992 Members 'Essential' to Missionary Success Thomas S.
Monson
June
27, 1992 Work Based on 'Testimony of Savior' Gordon B. Hinckley
June
29, 1991 Don't Let Converts 'Drift Away' Thomas S. Monson
June
29, 1991 Atonement: Key to Missionary Work Howard W. Hunter
June
22, 1991 Mission Presidents Embark on 'Work of Love' Gordon
B. Hinckley
June
29, 1991 General Authorities Share Insights
June
30, 1990 Build Solidly, Convert by Spirit Apostles
June
30, 1990 'Lord Knows How to Match a Man & Mission' Thomas
S. Monson
June
30, 1990 'Lose Yourself in Work' Gordon B. Hinckley
June
30, 1990 Atoning Sacrifice Howard W. Hunter
June
30, 1990 Master Feelings Marvin J. Ashton
June
30, 1990 Testify of Savior Joseph B. Wirthlin
June
30, 1990 Miracle Unfolds Dean L. Larsen
June
30, 1990 Aided By Spirit Russell M. Nelson
July
1, 1989 Baptism is Gateway to Eternal Life Howard W. Hunter
July
1, 1989 Testimony of Christ is Key Gordon B. Hinckley
July
1, 1989 'The Four M's of Missionary Work' Thomas S. Monson
June
24, 1989 'Unto All the World' Seminar Ezra Taft Benson, others