S, S. S. B. “PENGARUH INPUT PROSES RELATIONSHIP MARKETING TERHADAP OUTPUT PROSES RELATIONSHIP MARKETING STUDI KASUS GRAND INNA MALIOBORO HOTEL & CONVENTION”. Kajian Bisnis Sekolah Tinggi Ilmu Ekonomi Widya Wiwaha, vol. 27, no. 2, Aug. 2019, pp. 190-06, doi:10.32477/jkb.v27i2.62.