Rao, M. S. (1975) “Usage of Trend Surface Method in the Study of Crystallization Trend of Porphyries at Nausahi, Orissa”, Journal of Geological Society of India, 16(4), pp. 515–517. Available at: https://geosocindia.com/index.php/jgsi/article/view/63513 (Accessed: 20 September 2024).