11. Reference : CY-1-3-1

Diary from an excavation at Ongba Cave, Kanchanaburi.

| 1965 | Diary from an excavation at Ongba Cave, Kanchanaburi 1965 | Notebook

12. Reference : CY-1-3-2

Diary from studied trip at USA, EU and India.

| 1965 | Diary from studied trip at USA, EU and India in 1965. | Notebook

13. Reference : CY-1-3-3

Diary 1967-1968.

| 1967 | Diary 1967-1968. | Notebook

14. Reference : CY-1-3-4

Diary 1968.

| 1968 | Diary 1968. | Notebook

15. Reference : CY-1-4-1

Diary 1970.

| 1970 | Diary 1970. | Notebook

16. Reference : CY-1-4-2

Diary 1971. The interesting topics are as follow: 1) Conference at Australia 2) Inscribe summarize 3) History of archaeological research and ancient history 4) Dating of archaeology site in Thailand 5) Poem .

| 1971 | Diary 1971. The interesting topics are as follow: 1) Conference at Australia 2) Inscribe summarize 3) History of archaeological research and ancient history 4) Dating of archaeology site in Thailand 5) Poem (?) | Notebook

17. Reference : CY-1-4-3

Diary containing record of the excavation from Chansen site, Nakhon Sawan province.

| 1971 | Diary containing record of the excavation from Chansen site, Nakhon Sawan province. | Notebook

18. Reference : CY-1-4-4

Notebook containing records of Phra That Phanom and quotes from a South East Asian archaeology textbook.

| 1971 | Notebook containing records of Phra That Phanom and quotes from a South East Asian archaeology textbook. | Notebook

19. Reference : CY-1-4-5

Notebook containing record of: 1) Background and operations of archaeology in Denmark 2) Appendix from work of Eric Stahl 3) A sketch of a drum and bead 4) A table demonstrating the level of depth at which the artifacts were found 5) Prehistoric man in Th

| 1971 | Notebook containing record of: 1) Background and operations of archaeology in Denmark 2) Appendix from work of Eric Stahl 3) A sketch of a drum and bead 4) A table demonstrating the level of depth at which the artifacts were found 5) Prehistoric man in Th | Notebook

20. Reference : CY-1-5-1

Notebook containing records.

| 1971 | Notebook containing records of: 1) The conservation, preservation and restoration of cultural objects in the UK 2) Irregular earthworks in Eastern Siam and aerial survey 3) Ancient India 4) Mesolithic sites 5) Description of artifacts (?) 6) Technique for | Notebook