“PENGARUH PRODUK DAN HARGA TERHADAP KEPUTUSAN MAHASISWA MEMILIH PROGRAM STUDI GROUND HANDLING”. Jurnal Optimal 17, no. 1 (July 2, 2020): 73–90. Accessed October 4, 2026. https://jurnal.stieieu.ac.id/index.php/opt/article/view/106.