Fatimah Arma, Ana, Ratna Kusumawardani, and Iis Intan Widiyowati. 2019. “Pengaruh Model Learning Cycle 5E Berbasis Start With a Question Terhadap Hasil Belajar Siswa SMA Pada Materi Larutan Penyangga ”. Bivalen: Chemical Studies Journal 2 (1), 13-15. https://doi.org/10.30872/bcsj.v2i1.295.