Lumabak, Zemayma C. English proficiency of Bangkal seniors and teachers' utilization of instructional devices/ Zemayma C. Lumabak And 3 others. - Digos City: UMDC October 2008. - 43 pages; 28 pages. Subjects--Topical Terms: Liberal Arts--Undergraduate thesis.--English Dewey Class. No.: UT 0160 / L97