Ngipol, Veronica B. Lesson plan in Science & Health 6/ Veronica B. Ngipol. - Philippines: In the Grade School, Inc., c2011. - v60 n2, pages 59+; 27cm. ISSN: 2094-8042 Subjects--Topical Terms: Programmed instruction--Sciene and health. Dewey Class. No.: DPer 370.105 M72 Jan-Dec 2011 v59-60