Studies on fuels for tea driers - IV. the relative costs of heating air with firewood, coal and oil

Lamb, J.2015-06-192015-06-191936Tea Quarterly9pp.163-176https://dl-tri.nsf.gov.lk/handle/1/774AgricultureTea driersFuelHeating systemStudies on fuels for tea driers - IV. the relative costs of heating air with firewood, coal and oilArticle