SIMBOLON, F.; DEWANTI, R.; MELATI, I. FORMULASI KOMPETENSI INTI GREEN NITROGEN DALAM LAYANAN NITROGEN DI SPBU PERTAMINA. Journal of Business Strategy and Execution, [S. l.], v. 5, n. 2, p. 201 - 216, 2013. Disponível em: https://journal.binus.ac.id/index.php/JBSE/article/view/775. Acesso em: 3 may. 2024.