Harahap, Subur. “PRAKTEK AKUNTANSI BIAYA DAN PENGHITUNGAN HARGA POKOK JASA PERUSAHAAN PENERBANGAN CHARTER HELICOPTER DI INDONESIA”. ESENSI: Jurnal Manajemen Bisnis 26, no. 2 (August 30, 2023): 10-21. Accessed July 3, 2024. https://ibn.e-journal.id/index.php/ESENSI/article/view/691.