Al-Hassan, Seidu. Technical efficiency of rice farmers in northern Ghana / by Seidu Al-Hassan. - Nairobi : African Economic Research Consortium, c2008. - 35 p. : ill. ; 25 cm. - AERC research paper ; 178 . "April 2008." Includes bibliographical references (p. 31-33) ISBN: 9966778268 LCCN: 2008345132 Subjects--Topical Terms: Rice farmers--Ghana.Industrial efficiency--Ghana.Agricultural innovations--Ghana.