Ahmad Farkhan Arrofiqi, Raharjo, & Elma Sakinatus Sajidah. (2026). Pedevelopment of Problem-Based Learning (PBL) Based E-LKPD on Respiratory System Materials to Improve Students’ Critical Thinking Skills. EDUJAVARE: International Journal of Educational Research, 4(01), 436–457. https://doi.org/10.70610/edujavare.1333