चौथी शताब्दी से सातवीं शताब्दी के बीच विज्ञान एवं तकनीक : एक अध्ययन: Scientific and Technological Developments in India between the Fourth and Seventh Centuries: A Study. JASRAE. 2019;16(2):323-324. Accessed December 26, 2025. https://ignited.in/index.php/jasrae/article/view/10123