Nurhayati. (2021). Meningkatkan Hasil Belajar Siswa Melalui Penerapan Pendekatan Problem Posing pada Materi Stoikiometri. Jurnal Kinerja Kependidikan (JKK): Facilities of Educator Career and Educational Scientific Information, 3(1), 61–72. Retrieved from https://journalserambi.org/index.php/jkk/article/view/12