Manja, E. ., and H. Japina. “Pengaruh Kualitas Pelayanan Dan Keragaman Produk Terhadap Keputusan Pembelian Konsumen Alfamidi Sirandorung Rantauprapat”. Journal of Innovative and Creativity (Joecy), vol. 5, no. 1, May 2026, pp. 26578-8, doi:10.31004/joecy.v5i1.13545.