Gopinatha Pillai, N. R. (1970). Bhāṣānirīkṣaṇaṃ: Bhāṣāśāstṟaṃ. Sāhityapṟavarttaka Sahakaraṇasaṅghaṃ : [Sales Dept.], Nāṣanal Bukksṯṯāḷ.
Dyfyniad Arddull ChicagoGopinatha Pillai, N. R. Bhāṣānirīkṣaṇaṃ: Bhāṣāśāstṟaṃ. Kōṭṭayaṃ: Sāhityapṟavarttaka Sahakaraṇasaṅghaṃ : [Sales Dept.], Nāṣanal Bukksṯṯāḷ, 1970.
Dyfyniad MLAGopinatha Pillai, N. R. Bhāṣānirīkṣaṇaṃ: Bhāṣāśāstṟaṃ. Sāhityapṟavarttaka Sahakaraṇasaṅghaṃ : [Sales Dept.], Nāṣanal Bukksṯṯāḷ, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.