Narayanan Kalppatta. (2017). Kavithayude jeevacharitram: Study (3rd.). Mathrubhumi.
Chicago Style aipamenaNarayanan Kalppatta. Kavithayude Jeevacharitram: Study. 3rd. Kozhokode: Mathrubhumi, 2017.
MLA aipamenaNarayanan Kalppatta. Kavithayude Jeevacharitram: Study. 3rd. Mathrubhumi, 2017.
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