Khairiyah, Y., and T. Lestari. “THE INFLUENCE OF THE PROBLEM SOLVING MODEL WITH SCIENTIFIC LITERACY ON STUDENTS’ COMPETENCE ON GLOBAL WARMING MATERIAL AT SMP NEGERI 29 PADANG”. Universe, Vol. 2, no. 2, Dec. 2021, pp. 107-12, doi:10.24036/universe.v2i2.64.