Ahmad, brilliant, and M. . Khoirul Anwar. “Analisis Respon Pelaku Usaha Minuman Kopi (coffee Shop) Terhadap Kewajiban Sertifikasi Halal”. Jurnal Ekonomika Dan Bisnis Islam, vol. 3, no. 2, Aug. 2020, pp. 165-74, doi:10.26740/jekobi.v3n2.p165-174.