MAYSAROH, Rina Indah; SUJIANTO, Agus Eko. PENGARUH RELATIONSHIP MARKETING, KEUNGGULAN BERSAING DAN IMPLEMENTASI ISTISHNA’ TERHADAP LOYALITAS KONSUMEN ANUGERAH BETON. JURNAL ILMIAH EDUNOMIKA, [S. l.], v. 6, n. 2, p. 985–992, 2022. DOI: 10.29040/jie.v6i2.4904. Disponível em: https://jurnal.stie-aas.ac.id/index.php/jie/article/view/4904. Acesso em: 18 jul. 2025.