@PROCEEDINGS {KAUNG ZAN:1984a, title = {Rice production problems in Africa}, author = {Kaung Zan, Z and John, V. T. and Alam, M. S. }, booktitle = {Presented at the Crop Production Symposium of the Commonwealth Agricultural Bureaux, 12-18 February, Arusha}, year = {1984}, address = {Arusha, Tanzania}, }