“IMPLEMENTATION OF PROBLEM-BASED LEARNING MODEL TO IMPROVE STUDENT LEARNING OUTCOMES ON PLANT STRUCTURE MATERIAL IN GRADE V AT NYAMA CHRISTIAN ELEMENTARY SCHOOL”. Bio-Lectura : Jurnal Pendidikan Biologi, vol. 13, no. 2, Oct. 2026, pp. 47-54, https://doi.org/10.31849/31sw3213.