Lipkin, B. Y. Vyavasayika vaidyutha upayanthrangal. State Institute of Languages.
Chicago Edition CitationLipkin, B. Y. Vyavasayika Vaidyutha Upayanthrangal. Trivandrum: State Institute of Languages.
MLA Edition CitationLipkin, B. Y. Vyavasayika Vaidyutha Upayanthrangal. State Institute of Languages.
Warning: These citations may not always be 100% accurate.