Periandy, S., and S. Mohan. “?VIBRATIONAL ANALYSIS OF CROSS-LINKING AGENTS SPDP AND LC-SPDP”. Biological Sciences - PJSIR, vol. 42, no. 2, Apr. 1999, pp. 63-69, https://v2.pjsir.org/index.php/biological-sciences/article/view/2113.