Preecha, C., and Thongliumnak, S. “Bag opening technique for bag spawn culture of spit gill mushroom (Schizophyllum commune)”. International Journal of Agricultural Technology, vol. 11, no. 2, Feb. 2015, pp. 367-72, https://li04.tci-thaijo.org/index.php/IJAT/article/view/6258.