Coomans, Mikhail. Manusia Daya: Dahulu, Sekarang, Masa Depan. - Jakarta: Gramedia, 1987. - xi, 213p. ilus, 21 cm. ISBN: 9794031569 Subjects--Topical Terms: Kebudayaan Daya LC Class. No.: DS646.32.D9 / .C66 1987 Dewey Class. No.: 307.7