“Peningkatan Cognitive Engagement Siswa Dalam Pembelajaran Dengan Pendekatan POE (predict-Observe-Explain) Dan Multimedia Interaktif Yang Dikembangkan Sendiri: Improvement of Students’ Cognitive Engagement in Teaching and Learning Process Using POE (Predict-Observe-Explain) Approach and Self-Developed Interactive Multimedia”. 2018. Edu-Sains: Jurnal Pendidikan Matematika Dan Ilmu Pengetahuan Alam 7 (2):21-31. https://doi.org/10.22437/jmpmipa.v7i2.8204.