“STATE OF THE ART REVIEW: THE EFFECTIVENESS OF IMPLEMENTING PROBLEM BASED LEARNING (PBL) MODELS IN IMPROVING SCIENCE LEARNING”. Jurnal Inovasi Pendidikan Dan Teknologi Informasi (JIPTI), vol. 7, no. 1, Apr. 2026, pp. 245-54, https://doi.org/10.52060/jipti.v7i1.4044.