Ariola, Mariano M. Principles and Methods of Research: Circular Process of Research-is a never-ending Process of searching for truth. Ariola, Mariano M. - Manila Rex Book Store 2006. - xviii, 282pages 22cm Includes index ISBN: 9789712345487 Subjects--Topical Terms: Research.LC Class. No.: / 001.42 Ar4p 2006