Luangphakan, Bounping, Bounthavy Siphanthong, and Phavone Keodouangkham. “Factors Affecting Tea Prices for Farmers in Phongsaly District”. Souphanouvong University Journal Multidisciplinary Research and Development 12, no. 04 (October 30, 2026): 66–73. Accessed October 30, 2026. https://su-journal.com/index.php/su/article/view/1772.