Sari, Y.R., Ahda, Y. and Sumarmin, R. 2018. Development of Teaching Problem Learning Model and Ability to Sharing Ability to Biological Competence Class VII Students of MTsN Pakan Rabaa. BIODIK. 4, 1 (Jun. 2018), 36 - 47. DOI:https://doi.org/10.22437/bio.v4i1.5507.