Chimcherd, S., and C. Tharasawatpipat. “Amount of macronutrients in vermicompost from tissue paper waste with earthworm”. Suan Sunandha Science and Technology Journal, vol. 8, no. 2, Nov. 2022, pp. 36-41, https://li02.tci-thaijo.org/index.php/ssstj/article/view/218.