Amrah, Wahidah, and Fitriani Mandung. “Pengaruh Kualitas Produk, Celebrity Endorser Dan Harga Terhadap Keputusan Pembelian Produk Sirclo”. Economics and Digital Business Review, vol. 4, no. 2, Oct. 2023, pp. 235-43, doi:10.37531/ecotal.v4i2.795.