Diana, Eli, et al. “Upaya Peningkatan Kualitas Lulusan Melalui Workshop Pengenalan TOEFL (Test of English As a Foreign Language) Dan Penulisan Abstrak Karya Tulis Ilmiah”. Jurnal Kewirausahaan Dan Bisnis, vol. 3, no. 1, Feb. 2021, pp. 15-18, https://jurnalunived.com/index.php/JKB/article/view/135.