SOURCES
| Name of the Book | Author |
| Tholkaappiam | Tholkaappiar |
| Tholkaappiam Ilampuuranam | Iampuuranar |
| Nannool | Pavannanthiar |
| Nannool-Commentary | Mayilai Naathar |
Various Nikandus and Dictionaries
Preface verses of some Nikandus
Introductions of some Nikandus and Dictionaries
| Apithaana Cinthaamanni | A. Singaravelu Mudaliar |
| Tamil Lexicon | Madras University |
| Kalaik Kallanchiyam (Tamil Encyclopaedia) | Thamizh Vallarchikkazhakam, Madras |
| Some Essays of Vaiyapuri Pillai | S. Vaiyapuri Pillai |
| Thamizh Akaraathik Kalai (Tamil Lexicography) | Sundara Shanmuganar |
