suhaesa, ahmad alhanaen as et al. 2019. Pengaruh Model Pembelajaran Predict-Observe-Explain (POE)Terhadap Pemahaman Konsep Siswa Materi Kesetimbangan Kelarutan Kelas XI MIA SMAN 2 Labuapi Tahun Ajaran 2017/2018. Chemistry Education Practice. 1, 2 (Feb. 2019), 27–35. DOI:https://doi.org/10.29303/cep.v1i2.956.