De Leon, Hector S Aklat-aralin sa bagong kontitusyon / Hector S. De Leon. - 6th ed. - Manila : Rex Book Store, c2012. - lv, 561 pages. : 23 cm. ISBN: 9789712362415 Subjects--Topical Terms: Philippines--Constitutional law.Philippines. Constitution (1986) LC Class. No.: KF 5624.1 .D44 2012 F