Irbah, Y. N., T. H. Nufus, and N. Hidayati. “Analisis Nilai Kalori Dan Laju Pembakaran Briket Campuran Cangkang Nyamplung Dan Tempurung Kelapa”. Prosiding Seminar Nasional Teknik Mesin, vol. 12, no. 1, Dec. 2022, pp. 689-94, https://prosiding.pnj.ac.id/sntm/article/view/96.