Thampuran, R. S. (1999). Vadakkunnatha kshethram: Puravruthavum itheehyangalum. International Centre for Kerala Studies.
استشهاد بنمط شيكاغوThampuran, Ravivarma Sanalkum. Vadakkunnatha Kshethram: Puravruthavum Itheehyangalum. Kariavattom: International Centre for Kerala Studies, 1999.
MLA استشهادThampuran, Ravivarma Sanalkum. Vadakkunnatha Kshethram: Puravruthavum Itheehyangalum. International Centre for Kerala Studies, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.