00760nam a2200193Ia 4500 CTU_235877 210402s9999 xx 000 0 und d 630.715 H121 Trần, Quang Hân Khuyến nông Trần Quang Hân (Chủ biên) Hà Nội Nông nghiệp 2019 Giới thiệu đại cương về khuyến nông, tổ chức, quản lý khuyến nông và hoạt động của khuyến nông Việt Nam, phương pháp khuyến nông,... Công tác khuyến nông,Agricultural extension work nthai Trung tâm Học liệu Trường Đại học Cần Thơ