Hamid, A., Jakfar, A., Saiful, S., Febriana, I. D., & Rohmah, F. (2022). Effect the Addition of Biodiesel from Nyamplung Oil (Calophyllum Inophyllum) on Performance and Emission Characteristics of Diesel Engines. Jurnal Teknik Kimia Dan Lingkungan, 6(2), 120–127. https://doi.org/10.33795/jtkl.v6i2.336