Lubis, I. S. . (2022) “Pelatihan Test Of English Foreign Language (TOEFL) bagi Mahasiswa Prodi Manajemen Universitas Muhammadiyah Kalimantan Timur”, Jurnal Abdimas Mahakam, 6(01), pp. 57–62. doi: 10.24903/jam.v6i01.1142.