Mathem, M. (2018). Manorama yearbook 2019. Malayala manorama press.
Chicago-čujuhus (17. p.)Mathem, Mammen. Manorama Yearbook 2019. Kottayam: Malayala manorama press, 2018.
MLA-čujuhus (9. p.)Mathem, Mammen. Manorama Yearbook 2019. Malayala manorama press, 2018.
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