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Najwa Nurfajriah, Imam Tabroni, Nursyifa Faujiah, Ridha Nurjannah and Tiara Putri 2023. Problem Based Learning (PBL): Concrete Steps to Improve Students’ Communication Skills. International Journal of Integrative Sciences. 1, 1 (Feb. 2023), 7–20. DOI:https://doi.org/10.55927/ijis.v1i1.2973.