Gopinathan, R. (2005). Sthala nama sandesangal: Thiruvananthapuram nagaram. Govt. Arts college, Malayalam Dept..
Chicago Stili AlıntıGopinathan, R. Sthala Nama Sandesangal: Thiruvananthapuram Nagaram. TVM: Govt. Arts college, Malayalam Dept., 2005.
MLA AlıntıGopinathan, R. Sthala Nama Sandesangal: Thiruvananthapuram Nagaram. Govt. Arts college, Malayalam Dept., 2005.
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