Alkest, Naglaa Fauzy Esmaeil, et al. “The Effect of a Proposed Unit in Science Based on PISA Standards in Developing Life Problem-Solving Skills Among Prep School Students”. Journal of Curriculum and Teaching Methodology, vol. 3, no. 6, June 2024, pp. 61-85, https://doi.org/10.26389/AJSRP.N260224.