Kamsan, Tanyarat, Peeranart Kiddee, and Prisana Wonglom. 2021. “USE OF COFFEE GROUND WASTE WITH RUBBER WOOD SAWDUST FOR GOLDEN OYSTER MUSHROOM (PLEUROTUS CITRINOPILEATUS SINGER) CULTIVATION MATERIAL”. PSRU Journal of Science and Technology 6 (2). Phitsanulok, Thailand:86-97. https://ph01.tci-thaijo.org/index.php/Scipsru/article/view/243895.