Indrayani N, Yudi Cahyono B, Mukminatien N, Maria Ivone F. Self-Directed Informal Digital Learning of English: Identifying Its Nature and Activities for English Proficiency. rEFLections [internet]. 2024 Aug. 29 [cited 2026 Oct. 2];31(2):791-814. available from: https://so05.tci-thaijo.org/index.php/reflections/article/view/275261