Mathew,Mammen. (2021). Manorama yearbook 2021. Malayala Manorama.
Cita Chicago (17th ed.)Mathew,Mammen. Manorama Yearbook 2021. Kottayam: Malayala Manorama, 2021.
Cita MLA (9th ed.)Mathew,Mammen. Manorama Yearbook 2021. Malayala Manorama, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.