Sugesti N, Sugirin S, Priyana J, Wulandari E. Needs Analysis on Developing Mobile-Phone Based Learning Materials to Accelerate Students’ Mastery of English Vocabulary. JOLLT [Internet]. 2023 Oct. 16 [cited 2025 Sep. 30];11(4):748-61. Available from: https://ojspanel.undikma.ac.id/index.php/jollt/article/view/9127