Ans, L. ., & Haryanto, B. . (2021). Arabic Language Curriculum Development in Ma’had Umar Bin Al-Khattab Surabaya in Maintaining Middle Eastern Culture-based Educational Institutions.: Pengembangan Kurikulum Bahasa Arab di Ma’had Umar Bin Al-Khattab Surabaya Dalam Mempertahankan Lembaga Pendidikan Berbasis Kultur Timur Tengah. Academia Open, 5, 10.21070/acopen.5.2021.2199. https://doi.org/10.21070/acopen.5.2021.2199