Prakash, Surya Byapak bhuskhalan jokhim prabandh par prashikshan module / Surya Prakash. - New Delhi: Rastriya Aapada prabandhan sansthan, 2013. - xxvi, 282p.;24cm. Includes bibliographical references. ISBN: 9789382571063 Dewey Class. No.: 658.477 PRA