Krishnavariyar, N. . V. (1971). Ganita-bhoutika pattikakal (m).
Chicago Edition CitationKrishnavariyar, N V. Ganita-bhoutika Pattikakal (m). Kerala State Language Institute, 1971.
MLA Edition CitationKrishnavariyar, N V. Ganita-bhoutika Pattikakal (m). 1971.
Warning: These citations may not always be 100% accurate.