Official document: Invitation for a history seminar.

Official document: Invitation for a history seminar (May 23, 1978)

Report of SPAFA (Regional Centre for Archaeology and Fine Arts) committee meeting 2/1982

Report of SPAFA (Regional Centre for Archaeology and Fine Arts) committee meeting 2/1982 (October 4, 1982)

Report of SPAFA committee meeting 6/1982

Report of SPAFA committee meeting 6/1982 (November 2-4, 1982)

Official document: Invitation to a meeting between Thammasat University and the Political Bureau 22/1982

Official document: Invitation to a meeting between Thammasat University and the Political Bureau 22/1982 (September 17, 1982)

Official document: Invitation to a meeting of the Committee for Historical Document Publication 4/1982

Official document: Invitation to a meeting of the Committee for Historical Document Publication 4/1982 (May 4, 1982)

Official document: Invitation for lunch

Official document: Invitation for lunch (July 28, 1983)

Official document: Invitation to join the establishment of the Royal Institute

Official document: Invitation to join the establishment of the Royal Institute (February 23, 1983)

Official document: Invitation to donate money and goods

Official document: Invitation to donate money and goods (March 7, 1983)

Official document: Invitation to present “Krathin”

Official document: Invitation to present “Krathin” (September 2, 1983)