Dampak migrasi sirkuler pada kehidupan sosial masyarakat pantai : studi kasus pada empat tipe desa pantai di Sulawesi Selatan = The impact of circular migration on the social life of coastal communities : a case study of four types of coastal villages in South Sulawesi - Abdul Gani Baso (Library of Congress Photo Duplication Service ; The LC Office, 1992)