1. 1994
2. The role of potassium as an osmoticum in barley leaf cells.

   Hinde, P. (Awdur), Ion 1994

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

3. Trees and indigenous ecological knowledge about agroforestry practices in the rangelands of Shinyanga Region, Tanzania.

   Kilahama, F. B. (Awdur), Ion 1994

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

4. 1993
5. The genetics of geographically structured populations.

   Goudet, J. (Awdur), Hyd 1993

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

6. Ex-post cost-benefit analysis of village woodlots of Gujarat, India.

   Khan, J. A. (Awdur), Medi 1993

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

7. Ecological studies on the tick Dermacentor reticulatis.

   Tharme, A. P. (Awdur), Chwef 1993

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

8. Studies on the ant-fungus mutualism in leafcutting ants, Formicidae: attini.

   Bass, M. (Awdur), Ion 1993

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

9. 1992
10. Studies on the biology of Schistosoma margrebowiei.

    Ahari, E. E. (Awdur), Rhag 1992

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

11. The Paramo vegetation of Ecuador : the community ecology, dynamics and productivity of tropical grasslands in the Andes.

    Ramsay, P. M. (Awdur), Oxley, R. (Goruchwylydd), Rhag 1992

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

12. Monitoring the condition of semi-natural vegetation: the application of remote sensing and geographical information systems (GIS)

    Williams, J. H. (Awdur), Tach 1992

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

13. The protection of wood against fungal decay by isocyanate chemical modification.

    Cardias, M. D. F. C. (Awdur), Meh 1992

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth