ARHAMI; MACHMUD, M. Nizar; ALI, Masri. Limbah Tempurung Kelapa diuji Guna Menjadi Bahan Bakar Alternatif. Journal of Engineering and Science, [S. l.], v. 1, n. 1, p. 9–19, 2022. DOI: 10.56347/jes.v1i1.2. Disponível em: http://journal.kawanad.com/index.php/jes/article/view/2. Acesso em: 12 oct. 2025.