Sari, Nur Hafidah, AND 		Masruri, Muhsinatun.
" THE EFFECTIVENESS OF PROJECT-BASED LEARNING AND PROBLEM- BASED LEARNING MODELS TOWARDS GEOGRAPHY LEARNING OUTCOMES IN TERMS OF STUDENTS’ LOCUS OF CONTROL" <em>Geosfera Indonesia</em> [Online], Volume 3 Number 3 (31 December 2018)