| Ref. No. | Title |
|---|---|
| 41515 | Seasonal abundance, breeding and sex structure of populations of Tilapia nilotica (L.) and Labeo niloticus (F.) in the Jebel Aulia Dam area of the White Nile. |
| 55098 | Aspects of the biology of the catfish Clarias lazera (Cuv. & Val.) related to its economic cultivation. |