• CGPRT crops in Sri Lanka : a statistical profile 

      Wickramasinghe, Y.M.; Balasuriya, G.; van Dreumel, Terry A.A. (CGPRT Centre, 1995)

      CGPRT Crops in Sri Lanka: A Statistical Profile, structures data according to several configurations, combining price, cost, production and other indicators into time series which are further classified by season, ...