Pengaruh Model Pembelajaran Problem Based Learning (Pbl) Dengan Menggunakan Media Power Point Terhadap Hasil Belajar Siswa pada Materi Larutan Asam Basa: The Influence of Problem Based Learning (PBL) Using Media Point on Student Learning Outcomes in Basic Acid Solution Materials. st. 2019;2(1):147-152. doi:10.32734/st.v2i1.334