Mohenjo-daro: Seal: M-43 a: Jagat Pati Joshi and Asko Parpola, 1987: Corpus of Indus Seals and Inscriptions: Volume 1: Page 21: Collections in India: Suomalainen Tiedeakatemia.
Indus Script Sign Number 399: Sign List of the Indus Script: Iravatham Mahadevan, 1977: The Indus Script: Texts, Concordance and Tables: The Director General Archaeological Survey of India.