RERY, R. Usman; ERVIYENNI, Erviyenni; HARDIYANSYAH, Muhammad Agus. Development of electronic activity sheet based preview, question, read, reflect, recite, review (pq4r) learning strategy on ion balance and pH of buffer solution. Jurnal Pendidikan Kimia, [S. l.], v. 14, n. 2, p. 120–130, 2022. DOI: 10.24114/jpkim.v14i2.34639. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/34639. Acesso em: 9 jul. 2025.