Antiporda, Toni. The learning curve: education centers find ways to keep enrollment up even during off-peak season/ Toni Antiporda. - Philippines: Summit Media, Apr-Jul 2015. - v15 n158, pages 70-72: illustrations, 28 cm. Entrepreneur. ISSN: 01153544 Subjects--Topical Terms: Business--Education Dewey Class. No.: DPer 338.05 En86 Apr-Jul 2015 v. 15, n. 158-161