Nawattanaprasert, Kritchakhris, and Kusuma Palaprom. 2026. “DEVELOPING A PROTOTYPE OF AN AUTOMATIC CHARCOAL BRIQUETTE PRESS USING SOLAR ENERGY OF BAN NA SOM COMMUNITY, CHAI BADAN DISTRICT, LOPBURI PROVINCE”. Journal of MCU Nakhondhat 13 (1). Nakhon Si Thammarat, Thailand:211-19. https://so03.tci-thaijo.org/index.php/JMND/article/view/295615.