00491nam a2200181Ia 4500 CTU_8071 210402s9999 xx 000 0 und d 016.632 P967 IRRI The protection of leaf vegetables [ bibliography ] IRRI Manila IRRI 1988 plants, protection of Nguyễn Quang Điền, 960910 Trung tâm Học liệu Trường Đại học Cần Thơ