Official document: Invitation for meeting of the Historical Documents Publishing Committee 2/1975. | 1975 | Official document: Invitation for meeting of the Historical Documents Publishing Committee 2/1975. (September 16, 1975) | Typescript
Official document: Report of working on the place of registration of monuments 1/1976 | 1976 | Official document: Report of working on the place of registration of monuments 1/1976 (August 14, 1976) | Typescript
Official document: Invitation to the Committee of King Arnanthamahidol Scholarship | 1976 | Official document: Invitation to the Committee of King Arnanthamahidol Scholarship (June 25, 1976) | Typescript
Official document: Invitation to the Committee for the Registration of Monument Sites. | 1976 | Official document: Invitation to the Committee for the Registration of Monument Sites (August 9, 1976) | Typescript
Official document: Assigning the Committee of Historical Document Publication. | 1976 | Official document: Assigning the Committee of Historical Document Publication (July 9, 1976) | Typescript
