Perdanakusuma, Aditya Marino, and Meita Santi Budiani. “Hubungan Kualitas Pelayanan Terhadap Keputusan Pembelian Di Barbershop X”. Character Jurnal Penelitian Psikologi, vol. 11, no. 3, Sept. 2024, pp. 1400-1, doi:10.26740/cjpp.v11n3.p1400-1410.