Llagas, Avelina T. Becoming a 21st century educational leader / Avelina T. Llagas, Brenda B. Corpuz and Purita P. Bilbao. - Quezon City: Lorimar, c2016. - ix, 262 p. : ill. ; 26 cm. Includes appendices & bibliography. ISBN: 978-621-8035-11-9 (pbk.) Subjects--Topical Terms: Leadership.