Anuradhapura district :Thattumaru and Kattimaru systems of rotation of cultivation of cultivation of paddy land: a case study in the village of Unduruwa Halmillawa Anuradhapura District Sri Lanka:

2014-02-102014-02-101974Research Report, P.1-11https://dl-harti.nsf.gov.lk/handle/1/1329enAnuradhapura district :Thattumaru and Kattimaru systems of rotation of cultivation of cultivation of paddy land: a case study in the village of Unduruwa Halmillawa Anuradhapura District Sri Lanka:Book