Sivasubramaniam, S.2010-07-062010-07-061982Vidurava, 6(2):p.9-11https://dl.nsf.gov.lk/handle/1/5557GrassesGrasslandsLivestockAgricultureEvaluation and improvement of natural grassland (Patana) in the hill country dry zone of Sri Lanka for economic livestock productionArticle