1934 Book in Tamil by Govindaraja Ayyangar Swami Link
Azhvargalin Orumaippadu
Azhvargalin Orumaippadu – Arulichcheyal Pasurangalin Thoguppu 2004 Book in Tamil bt S Devanatha Ayyangar Swami http://acharya.org/bk/pb/sda/ao-acpt.pdf
Yatidharma Samuchchaya – Book
Book in Sanskrit by Govinda Jeeyar (Yadavaprakasa) http://acharya.org/bk/pb/gj/yds-s.pdf
Vedartha Sangraha Sarala
Commentary for Ramanuja’s Vedartha Sangraha, in Tamil by Veerapuram Sadagopachariar Swami http://acharya.org/bk/pb/vs/vss.pdf