The self assessment handbook: for measuring corporate excellence / Chris Hakes with contributions from Barry Popplewell, Hugh Gallacher and Gill Clements. — Londres : Chapman&Hall, 1994. — 132 p. ; 29 cm. — ISBN 0-412-58660-6 1. Empresas - Gestión. I. Popplewell, Barry. II. Gallacher, Hugh. III. Clements, Gill. 658.012