Futari, Mochammad Yordan Royyan, and Muhammad Abdus Salam Jawwad. 2023. “Evaluasi Pelaksanaan RKL/RPL Sebagai Faktor Penentu Penilaian PROPER Biru Di PT Pertamina Gas OEJA”. Envirous 4 (1):24-33. https://envirous.upnjatim.ac.id/index.php/envirous/article/view/153.