E-learning and the science of instruction : proven guidelines for consumers and designers of multimedia learning proven guidelines for consumers and designers of multimedia learning

By Clark, Ruth Colvin.. San Francisco, CA : Pfeiffer, 2011 . Pfeiffer, 22 cm.. 9780470874301 (hardback)

Estimating and tendering for construction work /

By Brook, Martin,. . p;359 9781138687165 (hardback : alk. paper) | 9781138838062 (pbk. : alk. paper)