Somsamout Phongsavath. 2003. Critical timing for weed control in maize and soybean intercropping systems. Field of Study Agricultural Systems, Chiang Mai University;
Somsamout Phongsavath. (2003) Critical timing for weed control in maize and soybean intercropping systems . Chiang Mai University/Chiang Mai.
Somsamout Phongsavath. Critical timing for weed control in maize and soybean intercropping systems. . Chiang Mai:Chiang Mai University, 2003.
Somsamout Phongsavath. (2003) Critical timing for weed control in maize and soybean intercropping systems . Chiang Mai University/Chiang Mai.