Ariyo, Ademola. Study of data collection procedures / by Ademola Ariyo and Adebis i Adeniran. - Nairobi : African Economic Research Consortium, c1998. - 56 p. ; 25 cm. - AERC research paper ; no.80 . "March 1998." Includes bibliographical references (p. [36]). ISBN: 9966900705 Subjects--Topical Terms: Economic surveys -- Methodology.-- Africa Dewey Class. No.: 363.68 ARI