Wulandari L, Widodo J, Sulhadi S. The Implementation of Learning Instrument of Soil Forming Material with Cooperative Model Type of Team Assisted Individualization of Elementary School Students. JPE [Internet]. 26Feb.2019 [cited 19May2024];8(4):120-8. Available from: https://journal.unnes.ac.id/sju/jpe/article/view/29219