ILMAN; AGUNG. Efektivitas Pelaksanaan Quality Control Pada Ultra Filtration Guna Mengefisiensi Energi di Unit Amoniak 1a PT. Petrokimia Gresik. Jurnal Indonesia Sosial Sains, [S. l.], v. 2, n. 07, p. 1115–1132, 2021. DOI: 10.59141/jiss.v2i07.363. Disponível em: https://www.jiss.publikasiindonesia.id.solusipublish.com/index.php/jiss/article/view/363. Acesso em: 27 dec. 2025.