Asombrado, Jackelyn A. Problem factors and academic performance of UMDB working students/ Jackelyn A. Asombrado, Resty R. Asombrado and Roel V. Calvo. - Digos City: UMDC March 2007. - 41 pages; 29 cm. Subjects--Topical Terms: Elementary Education--Undergraduate thesis. Dewey Class. No.: UT 0059 / As58