Mubaroh, Sari, and Linda Fujiyanti. “Need Analysis on the Development of Polytechnic English Textbook”. Linguistic, English Education and Art (LEEA) Journal 5, no. 2 (March 19, 2022): 153–161. Accessed April 8, 2025. https://journal.ipm2kpe.or.id/index.php/LEEA/article/view/3195.