Seang Lay Heng. 2010. Drought tolerance and nutrient uptake efficiency in maize. Faculty of Agriculture, Chiang Mai University;
Seang Lay Heng. (2010) Drought tolerance and nutrient uptake efficiency in maize . Chiang Mai University/Chiang Mai.
Seang Lay Heng. Drought tolerance and nutrient uptake efficiency in maize. . Chiang Mai:Chiang Mai University, 2010.
Seang Lay Heng. (2010) Drought tolerance and nutrient uptake efficiency in maize . Chiang Mai University/Chiang Mai.