Sivasankaran, M. (2001). ശാസ്ത്രകൌതുകം (10th ed.). Kerala Sasthra Sahitya Parisath.
Chicago Stili AlıntıSivasankaran, M. ശാസ്ത്രകൌതുകം. 10th ed. തൃശ്ശൂര്: Kerala Sasthra Sahitya Parisath, 2001.
MLA AlıntıSivasankaran, M. ശാസ്ത്രകൌതുകം. 10th ed. Kerala Sasthra Sahitya Parisath, 2001.
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