Zidni ZFKS, Widiarini, Mubarok TA. Developing Vocabulary Digital Pocket Book to Online Business and Marketing (OBM) Students at Vocational High School Level. JETAR [Internet]. 2023May24 [cited 2024Nov.22];8(1):30-2. Available from: https://ojs.unpkediri.ac.id/index.php/inggris/article/view/18755