2019. Pengembangan Perangkat Pembelajaran Matematika Model Pembelajaran Berbasis Masalah untuk Meningkatkan Kualitas Proses dan Hasil Belajar di SMP: Developing of Mathematics Learning Devices with Problem Based Learning Model to Improve Process Quality and Learning Outcomes of Junior High School. Talenta Conference Series: Science and Technology (ST). 2, 2 (Jul. 2019). DOI:https://doi.org/10.32734/st.v2i2.544.