SOYSA, E. and FERNANDO, W., 1992. A FIELD CLASSICATION OF LOW VALUE CORUNDUM IN SRI LANKA. Journal of the National Science Foundation of Sri Lanka, 20(1), pp.51–57. DOI: http://doi.org/10.4038/jnsfsr.v20i1.8058

SOYSA E, FERNANDO W. A FIELD CLASSICATION OF LOW VALUE CORUNDUM IN SRI LANKA. Journal of the National Science Foundation of Sri Lanka. 1992;20(1):51–7. DOI: http://doi.org/10.4038/jnsfsr.v20i1.8058

SOYSA, E., & FERNANDO, W. (1992). A FIELD CLASSICATION OF LOW VALUE CORUNDUM IN SRI LANKA. Journal of the National Science Foundation of Sri Lanka, 20(1), 51–57. DOI: http://doi.org/10.4038/jnsfsr.v20i1.8058

SOYSA E and FERNANDO W, ‘A FIELD CLASSICATION OF LOW VALUE CORUNDUM IN SRI LANKA’ (1992) 20 Journal of the National Science Foundation of Sri Lanka 51 DOI: http://doi.org/10.4038/jnsfsr.v20i1.8058

SOYSA, ESK, and WS FERNANDO. 1992. “A FIELD CLASSICATION OF LOW VALUE CORUNDUM IN SRI LANKA”. Journal of the National Science Foundation of Sri Lanka 20 (1): 51–57. DOI: http://doi.org/10.4038/jnsfsr.v20i1.8058

SOYSA, ESK, and WS FERNANDO. “A FIELD CLASSICATION OF LOW VALUE CORUNDUM IN SRI LANKA”. Journal of the National Science Foundation of Sri Lanka 20, no. 1 (1992): 51–57. DOI: http://doi.org/10.4038/jnsfsr.v20i1.8058

SOYSA, E.and W. FERNANDO. “A FIELD CLASSICATION OF LOW VALUE CORUNDUM IN SRI LANKA”. Journal of the National Science Foundation of Sri Lanka, vol. 20, no. 1, 1992, pp. 51–57. DOI: http://doi.org/10.4038/jnsfsr.v20i1.8058