Nikma, Julia Khoirun, Qurrotul Anfa, and Desi Nuzul Agnafia. 2024. “THE EFFECT OF OUTDOOR LEARNING-BASED PROBLEM-BASED LEARNING MODEL ON LEARNING OUTCOMES IN TERMS OF STUDENT ACTIVITY IN ECOSYSTEM MATERIAL CLASS VII MTS NEGERI 4 BOJONEGORO”. International Journal Multidisciplinary (IJMI) 1 (3):18-25. https://doi.org/10.61796/ijmi.v1i3.164.