VIXATHEP, S.; ONPHANHDALA, P. ປະສິດທິພາບຂອງການປູກຝັງໃນເຂດທົ່ງພຽງ ແລະ ເນີນສູງໃນ ສປປ ລາວ: Efficiency of lowland and upland farming in Lao PDR,. Journal of Lao Economics and Business Management, [S. l.], v. 1, n. 1, p. 18–37, 2013. Disponível em: https://feb.nuol.edu.la/journal/index.php/jleb/article/view/54. Acesso em: 15 mar. 2025.