SOMATIC EMBRYOGENESIS FROM LEAF TRANSVERSE THIN CELL LAYER DERIVED-CALLUS OF VIETNAMESE GINSENG (PANAX VIETNAMENSIS HA ET GRUSHV.) - Vu Thi Hien, Nguyen Phuc Huy, Bui Van The Vinh, Hoang Xuan Chien, Hoang Thanh Tung (2023)