Gumilar, Renaldi Egi, Ghia Ghaida Kanita, and Ismail Yusuf. “Analisis Strategi Bauran Pemasaran Dalam Meningkatkan Volume Penjualan Sewa Kamar Kos Deltoid Yogyakarta”. Management Studies and Entrepreneurship Journal (MSEJ) 4, no. 5 (August 20, 2023): 4948–4954. Accessed October 20, 2025. https://journal.yrpipku.com/index.php/msej/article/view/2829.