Pairut Leelahakarnjana. (1998) Using signature file technique for searching a multi-valued attribute in relational database. Mahidol University,:ม.ป.ท.Pairut Leelahakarnjana. 1998. Using signature file technique for searching a multi-valued attribute in relational database. ม.ป.ท.:Mahidol University,;Pairut Leelahakarnjana. Using signature file technique for searching a multi-valued attribute in relational database. ม.ป.ท.:Mahidol University, 1998. Print.