Naungayan, Emilio C. Taking the pupils on a field trip/ Emilio C. Naungayan. - Philippines; In The Grade School, Inc., c2010-2011. - v59 n8, pages 337: 27cm. ISSN: 2094-8042 Subjects--Topical Terms: Field trips. Dewey Class. No.: DPer 370.105 M72 June 2010-Mar 2011 v. 59 n. 1-10