DETECTION OF GREEN LEAFHOPPER AS A VECTOR OF RICE ORANGE LEAF PHYTOPLASMA DISEASE ON RICE. ការសិក្សាភ្នាក់ងារចម្លងមមាចខៀទៅលើជំងឺRICE ORANGE LEAF PHYTOPLASMA 15345 NA ASMBO ណា​ សំបូរ AGR NAS 2019 B1.590 Or. Phnom Penh RUA 2019 2019 Text IX.28P eng