Philipupillai, J.X.R.2020-08-282020-08-281978Engineer, 6(2):p.15-16https://dl-iesl.nsf.gov.lk/handle/1/2273Engineering and TechnologyFertilizer technologyProductionFertilizer project Sapugaskande - 25 days round-the-clock slipform construction of the urea prilling towerArticle