M. Hernandez, Noel, and Eliseo P. Villanueva. 2024. “Adaptation of a Gasoline-Fueled Conventional Engine into a Purified Biogas-Fueled Engine for Power Generation”. ASIA PACIFIC JOURNAL OF SOCIAL INNOVATION 23 (2):99-126. https://journals.msuiit.edu.ph/tmf/article/view/580.