21. Reference : CY-1-15-14

Stone Inscription from Wat Dong Bunnak

| Stone Inscription from Wat Dong Bunnak (Phan) by Hans Penth | Typescript

22. Reference : CY-1-15-15

A new method of prehistoric art exhibition

| A new method of prehistoric art exhibition by L. S. B. Leakey | Typescript

23. Reference : CY-1-15-16

Draft of Proposal

| Draft of Proposal | Typescript

24. Reference : CY-1-15-17

The last two million years

| The last two million years | Typescript

25. Reference : CY-1-15-18

Result of their works

| Result of their works | Typescript

26. Reference : CY-1-15-19

40 million year old primates from Pondaung

| 40 million year old primates from Pondaung (Burma) | Typescript

27. Reference : CY-1-15-20

Human fossils

| Human fossils | Typescript

28. Reference : CY-1-15-21

Article from American Antiquity

| 1971 | Article from American Antiquity (1971) | Typescript

29. Reference : CY-1-15-23

List of Delegates at the International Congress of Orientalists

| 1971 | List of Delegates at the International Congress of Orientalists | Typescript

30. Reference : CY-1-15-24

The relative time from Mahasakkaraj-BE-AD

| 1971 | The relative time from Mahasakkaraj-BE-AD | Typescript