H. Lestari, I. Rahmawati, R. Siskandar, and H. Dafenta, “Implementation of Blended Learning with A STEM Approach to Improve Student Scientific Literacy Skills During The Covid-19 Pandemic”, jppipa, pendidikan ipa, fisika, biologi, kimia, vol. 7, no. 2, pp. 224–231, Apr. 2021.