A. . Perangin-angin, F. . Gultom, R. . Tampubolon, and L. . Pardede, “Implementation of Improving Student Learning Outcomes with Innovative Learning Methods and Parenting During the Covid-19 Pandemic”, jppipa, pendidikan ipa, fisika, biologi, kimia, vol. 8, no. 6, pp. 3063–3068, Dec. 2022.