Kurniawan, Rifki, et al. “ANALISIS KRITERIA DAN PROSES SELEKSI KONTRAKTOR CHEMICAL SEKTOR HULU MIGAS: APLIKASI METODE DELPHI-AHP”. MIX: JURNAL ILMIAH MANAJEMEN, vol. 7, no. 2, Aug. 2017, https://publikasi.mercubuana.ac.id/index.php/Jurnal_Mix/article/view/1622.