Pirom Suwannasom. 2008. Determination of some plant nutrients and gibberellic acid (GA3) in liquid biofertilizers. Faculty of Science, Khon Kaen University;
Pirom Suwannasom. (2008) Determination of some plant nutrients and gibberellic acid (GA3) in liquid biofertilizers . Khon Kaen University/Khon Kaen.
Pirom Suwannasom. Determination of some plant nutrients and gibberellic acid (GA3) in liquid biofertilizers. . Khon Kaen:Khon Kaen University, 2008.
Pirom Suwannasom. (2008) Determination of some plant nutrients and gibberellic acid (GA3) in liquid biofertilizers . Khon Kaen University/Khon Kaen.