| 641 | |
| 642 | |
| Language: | English |
| 643 | Nature of te complexes of benzoin and substituted benzoins with lewis acids |
| 644 | |
| Language: | English |
| 645 | |
| 646 | |
| Language: | English |
| 647 | |
| 648 | |
| Language: | English |
| 649 | |
| 650 | Investigation of dikamali gum and synthesis of some recently discovered flavones |
| Language: | English |
| 651 | |
| 652 | |
| Language: | English |
| 653 | |
| 654 | Physico-chemical properties of shellac and its structural implication |
| Language: | English |
| 655 | |
| 656 | Studies of some fundamental physical and physicochemical properties of natural resins |
| Language: | English |
| 657 | Chemical investigation of anacardium occidentale gum and other plant gums |
| 658 | |
| Language: | English |
| 659 | Studies on synthetic resins and their application to lignocellulosic building materials |
| 660 | |
| Language: | English |