Boontim, Napalai. “Cost and Return of Candle Fabric of Professional Woman’s Group Ban Lao Neng in Khao Kho District, Phetchabun Province”. Research and Development Journal, Loei Rajabhat University 16, no. 58 (October 11, 2021): 25–33. accessed September 28, 2026. https://so05.tci-thaijo.org/index.php/researchjournal-lru/article/view/250011.