Article in English by Rajagopalan Kannan Swami http://acharya.org/ar/rkrd/vvsm.pdf
Thiruvasiriyam Saaram
Talk in Tamil by TCA venkatesan https://srivaishnava.bandcamp.com/album/thiruvasiriyam-saaram-tamil
Suddha Sampradhaya Saram
1995 Book in Tamil by R Perumal Ramanuja Dasan Swami http://acharya.org/bk/pb/rprd/sss.pdf
Sri Ramanujan 359
Apr 1978 Issue http://acharya.org/mag/sr/sr359.pdf
Archavathram – Acharya Hrudhayam
Book in Tamil by Thirukkannapuram Satakopachariar Swami http://acharya.org/bk/pb/tks/aa-ah.pdf