Pasaribu, J.F.Y.A. and Saija, L.M. 2019. Enhancement of Junior High School Students Problem Solving Ability Using Missoury Mathematics Project Learning Model with Individual and Small Group Assignments. 11th International Scholars Conference. 7, 1 (Dec. 2019), 1586-1596. DOI:https://doi.org/10.35974/isc.v7i1.1161.