Ray, P. C. (1903). A history of Hindu chemistry: From the earliest times to the middle of the sixteenth century A.D. with Sanskrit texts, variants,translation and illustrations (2nd rev. and enl.). The Bengal Chemical & Pharmaceutical Works.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিRay, Prafulla Chandra. A History of Hindu Chemistry: From the Earliest Times to the Middle of the Sixteenth Century A.D. with Sanskrit Texts, Variants,translation and Illustrations. 2nd rev. and enl. The Bengal Chemical & Pharmaceutical Works, 1903.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিRay, Prafulla Chandra. A History of Hindu Chemistry: From the Earliest Times to the Middle of the Sixteenth Century A.D. with Sanskrit Texts, Variants,translation and Illustrations. 2nd rev. and enl. The Bengal Chemical & Pharmaceutical Works, 1903.