K. Ngaosuwan, S. Keaochaidi, L. Phaomee, C. Sookman, S. Boonpun, and C. Thummachinda, “Effect of NiO Loading on the Catalytic Activity of Ni-Al2O3 Catalyst by Co-precipitation for Green Diesel Production”, J. Adv. Dev. Eng. Sci., vol. 10, no. 28, pp. 27–42, Aug. 2023.