Phunthavongsa, Khambai, Thanaporn Athipanyakul, และ Naruemol Kaewjampa. 2016. “A comparison of socio-economic characteristics of farmers adoption of Stone Jatropha (Vernicia montana) cultivation in northern, Lao PDR”. วารสารแก่นเกษตร 44 (3):499-508. https://li01.tci-thaijo.org/index.php/agkasetkaj/article/view/250447.