Zainol, S. N. H. M. ., Yaacob, A. ., & Abdullah, S. S. . (2025). Needs analysis for developing a flipbook-based explicit vocabulary module in CEFR-aligned primary ESL. International Journal of Innovative Research and Scientific Studies, 8(6), 2702–2715. https://doi.org/10.53894/ijirss.v8i6.10196