1,346 Thik Sukree 2016-11-12 https://books.google.com.my/books?id=tixF72IuRFwC&pg=PA405&lpg=PA405&dq=vitamin+content+in+Nypa+fruticans&source=bl&ots=od8uJFwNIr&sig=PrAJ8_DtcV85WZeYbDHGw7GHBy0&hl=en&sa=X&redir_esc=y#v=onepage&q=vitamin%20content%20in%20Nypa%20fruticans&f=false(blue)https://www.researchgate.net/profile/Peter_Okafor/publication/26563682_Chemical_Profile_of_Nypa_fruiticans_from_Cross_River_Estuary_South_Eastern_Nigeria/links/543be2e10cf24a6ddb97b966.pdf Lim, T. K. (2012). Edible medicinal and non-medicinal plants (Vol. 1, pp. 285-292). Dordrecht, The Netherlands:: Springer. Revised record 20.9.2019.