Aphiphan Pookpakdi; Vilaiwan Promkham; Chutanart Chuangpetchinda; Sawai Pongkao; Chalermpol Lairungrueng; Charasporn Tawornsuk. Growth Stage Identification in Mungbean (Vigna radiata (L.) Wilczek). Agr. Nat. Resour. 1992, 26, 75-80.