Quimada, Marissa Effects of mother tongue subject on grade IV spelling performance in english in new ilocos elementary school / Marissa Quimada, Hanjely Serapion, Laiza Soledad - Digos City : UMDC November 2017 - 50 pages ; 29 cm. Subjects--Topical Terms: Education--Undergraduate thesis.--Elementary Dewey Class. No.: UT 0967 / Q69