Arrumdani, Ning, Hasan Asari, and Nabila Yasmin. 2022. “KONTRIBUSI KOIN UMAYYAH TEMUAN SITUS BONGAL TERHADAP HISTORIOGRAFI ISLAM DI SUMATERA UTARA”. Yupa: Historical Studies Journal 6 (2), 125-48. https://doi.org/10.30872/yupa.v6i2.1504.