Ancog, Ma. Regina P. Workteks sa araling panlipunan I: Kasaysayan ng pilipinas/ Ma. Regina P. Ancog, Jocelyn F. Capistrano, Perlita P. De Leon. - Manila: Innovative Educational Materials, Inc. , 2007. - v, 208 pages: illustrations, pictures, figures, tables; 27 cm. Tagalog ISBN: 9716994056 Subjects--Topical Terms: Araling panlipunan. Pilipinas - kasaysayan. Dewey Class. No.: 959.9 / A4w