Search Results       Your search for [author]Leon, Emily (Dodson) de, 1946- returned 1 record.           Common difficulties encountered by second year high school students of the University of Manila in the study of elementary algebra, 1972-1973... by Leon, Emily (Dodson) de, 1946-; 1973. Subject: Algebra; Mathematics -- Study and teaching (Secondary); Dissertations, Academic -- Philippines.          Add to Book Cart Relevance: 37.72%