Munawaroh, Beti, & Muhsinatun Siasah Masruri.
" THE EFFECTIVENESS OF PROBLEM BASED LEARNING AND DISCOVERY LEARNING MODEL TOWARD LEARNING OUTCOME IN GEOGRAPHY ON STUDENTS WITH EXTERNAL LOCUS OF CONTROL." <em>Geosfera Indonesia</em> [Online], 4.1 (2019): 56-62. Web.  4 May. 2024