SOMBOUNKKHANH, K.; PANNANGPETCH, K.; KEERATI-KASIKORN, P.; POLTHANEE, A. Responses of 3 Lao Rice Varieties to Nitrogen Fertilizer. วารสารแก่นเกษตร, [S. l.], v. 34, n. 1, p. 29–37, 2006. Disponível em: https://li01.tci-thaijo.org/index.php/agkasetkaj/article/view/249975. Acesso em: 16 ก.ย. 2026.