Rajan,A.R Sarvavijnanakosham,Volume 17/ A.R.Rajan - Thiruvananthapuram: The State Institute of Encyclopaedic Publications, 2018. - 824p. Malayalam Encyclopaedia in 20 volumes. Subjects--Topical Terms: Encyclopedias and dictionariesMalayalam Dewey Class. No.: 039 / RAJ/S V.17