Walker, A. R. “The Lahu-speaking Peoples of the Yunnan-Indochina Borderlands: A Threefold Religious Heritage and its Consequent Syncretisms”. The Journal of the Siam Society, vol. 104, Nov. 2016, pp. 229-68, https://so06.tci-thaijo.org/index.php/pub_jss/article/view/158102.