Ruadap, Ma. Violeta E., The Gem of the Philippine Heritage / Ma. Violeta E. Ruadap. - Sampaloc, Manila : St. Agustine Publications, Inc., 2014. - ii, 201 pages : colored illustrations, tables ; 27 cm. + Includes bibliographical references. English ISBN: 9789716837933 Dewey Class. No.: FIL 303.372 / R82