Nizam, A.Perera, S.P.J.Mailewa, D.M.A.B.2024-10-032024-10-032010-12-16Peradeniya University Research Session PURSE -2010, Proceeding and Abstracts, University of Peradeniya, Sri Lanka, Vol.15, 16th December, 2010, PP. 636-638970-955-589-145-51391-4111https://ir.lib.pdn.ac.lk/handle/20.500.14444/1466en-USNatural angular coordinate system for visual spaceArticle