May 1978 Issue http://www.acharya.org/mag/sr/sr360.pdf
Sri Ramanujan 359
Apr 1978 Issue http://acharya.org/mag/sr/sr359.pdf
Sri Ramanujan 295
Apr 1973 Issue http://acharya.org/mag/sr/sr295.pdf
Sri Ramanujan 358
March 1978 Issue http://acharya.org/mag/sr/sr358.pdf