(1)
Hidayatulloh, R.; Suyono, S.; Azizah, U. Development of STEM-Based Chemistry Textbooks to Improve Students’ Problem Solving Skills. J. Penelit. dan. Pengkaj. Ilmu. Pendidik. e-Saintika 2020, 4 (3), 308-318. https://doi.org/10.36312/e-saintika.v4i3.306.