Jamil, Achmad Maulana Malik, and Mustika Arif Jayanti. 2016. “AKTOR ANG EMPENGARUHI ERSEBARAN UKO I OTA ALANG”. PIG (Jurnal endidikan an lmu eografi) 1 (1). http://ejournal.unikama.ac.id/index.php/JPIG/article/view/1451.