Munzir, M., Rahmawati, N. and Setiadi, D. (2023) “Improving the Biology Learning Outcomes of Class XI Students on Respiratory System Material Using the Problem-Based Learning Model at SMAN 2 Mataram”, PENBIOS: JURNAL PENDIDIKAN BIOLOGI DAN SAINS, 8(02), pp. 01-07. doi: 10.51673/penbios.v8i02.1803.