Book in Sanskrit by Sri U Ve P B Annangarachariar Swami DivyaPrabandham in Sanskrit : Thiruppallandu, Kanninun Siruththambu, Thiruvaymozhi, Thiruppavai, Ramanuja Nutrandhadhi http://acharya.org/bk/pb/pba/dugm.pdf
Sri Ramanujan 288
Oct 1972 Issue http://acharya.org/mag/sr/sr288.pdf
Achanpillai Ashtadhyayi
1949 Book in Tamil, by P B Annangarachariar Swami http://acharya.org/bk/pb/pba/apad.pdf