Fajari, L. E. W. . “PENGARUH PROBLEM-BASED LEARNING MULTIMEDIA DAN MOTIVASI BELAJAR TERHADAP KETERAMPILAN BERPIKIR KRITIS SISWA SEKOLAH DASAR”. Journal of Professional Elementary Education, vol. 1, no. 1, Mar. 2022, pp. 34-45, doi:10.46306/jpee.v1i1.5.