Johnstone, Patrick. Operation World: The Day by Day Guide to Praying for thr World. - Grand Rapids, Michigan: Zondervan Publishing House, 1979,1993. - 662p. 23 cm. ISBN: 0310400317 (pbk.) Subjects--Topical Terms: Doa--Pokok--pokok Doa Dunia LC Class. No.: BV4811 / .J596 1993 Dewey Class. No.: 266.0021