Laarhoven, Ruurdje. Triumph of Moro diplomacy : the Maguindanao Sultanate in the 17th century / Ruurdje Laarhoven. - Quezon City : New Day Publishers, 1989. - xix, 267 p. : maps ; 22 cm. Includes bibliographical references (p. 259-267). ISBN: 9711003902 LCCN: 89948691 Subjects--Topical Terms: Muslims--History--Philippines--17th century. Subjects--Geographic Terms: Mindanao Island (Philippines)--History. LC Class. No.: DS688.M13 / L33