Sangines, Leticia T Banghay-aralin sa EKAWP-IV/ Leticia T. Sangines. - Philippines: In the Grade School, Inc., ©2012. - page 239; 28 cm. The Modern Teacher. ISSN: 2094-8042 Subjects--Topical Terms: Programmed instruction--Health Dewey Class. No.: DPer 370.105 M72 Jan-Dec 2012 v. 60-61