TO Tests of language proficiency for secondary (std. X) level: Tamil by Subbiah, Pon, Balakumar, M., Central Institute of Indian Languages fromEvaluation & testing series 0 Type: Book Tamil language learning text book.
MT Mutunilait Tamil̲p pāṭanūl: Tamil̲arallātār Tamil̲ai iraṇṭām mol̲iyākak kar̲patar̲… by Subbiah, Pon, Central Institute of Indian Languages 0 Type: Book Study and teaching of Tamil language.
CO Compendium of graded tests in Tamil: upper primary by Subbiah, Pon, Central Institute of Indian Languages 0 Type: Book
CO Compendium of graded tests in Tamil: primary by Subbiah, Pon, Central Institute of Indian Languages 0 Type: Book