LAOLI, Elvia Putri Faeri et al. PENGARUH HARGA DAN PROMOSI TERHADAP KEPUTUSAN PEMBELIAN PRODUK GTMAN DI PT. JASA RICKY ABADI. JURNAL ILMIAH SOCIO SECRETUM, [S.l.], v. 9, n. 1, p. 168 - 182, june 2019. ISSN 2720-9830. Available at: <https://ejurnal.darmaagung.ac.id/index.php/socio/article/view/218>. Date accessed: 23 dec. 2024.