Choudhury, K C . A First Course in Theory of Numbers / Textual Documents K C Choudhury. - 1st ed / - New Delhi : Asian Books Pvt Ltd , 2007. ISBN: 81-8629-965-3 Subjects--Index Terms: Number Theory,G-Mathematics Mathematics G-Mathematics PG-Mathematics Dewey Class. No.: 512.7 / Ch 458 Fi