PUTRI, Sayyidah; ANWAR, Moch. Khoirul. Pengaruh Bauran Pemasaran Syariah Terhadap Loyalitas Jamaah Umrah Di PT. Ikhwan Berkah Sejahtera. Jurnal Ekonomika dan Bisnis Islam, [S. l.], v. 2, n. 1, p. 97–108, 2019. Disponível em: https://journal.unesa.ac.id/index.php/jei/article/view/26421. Acesso em: 10 jun. 2025.