Alegre, Lilia A. Elements of office systems and administrative principles: Philippine setting/ Lilia A. Alegre, Milagrina A. Gomez, Zaida R. Lopez, Concepcion B. Mapa - vi , 148 pages: illustrations; 26 cm. ISBN: 9718170006 Subjects--Topical Terms: Office managementOffice practice Dewey Class. No.: 651.3