S.Themba, O. “PRICE DISCOUNT, SALES PROMOTION DAN BONUS PACK TERHADAP IMPULSE BUYING PADA PT MATAHARI DEPARTEMENT STORE MAKASSAR”. AkMen JURNAL ILMIAH, vol. 16, no. 2, June 2019, pp. 168-75, https://e-jurnal.nobel.ac.id/index.php/akmen/article/view/656.