Effect of farm yard manure level on rice yield, organic matter and total N content on coastal sandy soil of Thua Thien Hue province.
(2007) Science and Technology Journal of Agriculture and Rural Development. No. 4. 2007. Designing and Printing in Enterprise of Labour and Society Publishing House. Hanoi. p: 111-126 (in Vietnamese). — Vol. 4, p. 111-126 (2007)
