N. . YINGTHAVORN, L. . NOYNOO, T. . BOONKAMNERD, N. . RAKMAK, and C. . SIRIPATANA, “Biochemical Methane Potential of Palm Oil Mill Effluent (POME) Co-Digested with Rubber Latex Effluent (LTE): Effect of POME/LTE Ratio and Temperature”, Walailak J Sci & Tech, vol. 17, no. 12, pp. 1321–1334, Dec. 2020.