Srikantia, S. V. (1982) “Mesozoic Ammonites from the Spong Valley, Zanskar, N. W. India”, Journal of Geological Society of India, 23(12), pp. 624–625. Available at: https://geosocindia.com/index.php/jgsi/article/view/65241 (Accessed: 20 September 2024).