Gopinath, M.A., Inder Mohan, R., Bhandar, K.M. and Saifulla, S. 1983. Phase Relations in Natural and Social Sciences: A Comparative Case Study. Journal of Information and Knowledge. 20, 2 (Jan. 1983), 63–74. DOI:https://doi.org/10.17821/srels/1983/v20i2/49274.