Alferez, Merle S. MSA : elementary algebra / Merle S. Alferez and Ma. Cecilia A. Duro - Philippines MSA Academic Advancement Institute c2017. - 351 p. ISBN: 971-8740-69-4 Subjects--Topical Terms: Algebra -- Problems, exercises, etc.Algebra -- Examinations. Dewey Class. No.: Res 512.076 Al284 2017