Rāghavavāriyar, Manipravala Charcha (saṃskārapaṭhanaṇnaḷ) / by M R Raghava Varrier & Kesavan Veluthat - Kottayam , 2016. - 83 pages ; Historical discussion on medieval Malayalam literature. In Malayalam. ISBN: 9789386094094 Dewey Class. No.: 891.109 RAG/M