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Sunthorn Poolpipatana. 1994. Chemistry and mineralogy of acid sulfate soils and potential utilization of green manures as acid soil amenaments. , University of Hawaii;
Sunthorn Poolpipatana. (1994) Chemistry and mineralogy of acid sulfate soils and potential utilization of green manures as acid soil amenaments . University of Hawaii/Hawaii.
Sunthorn Poolpipatana. Chemistry and mineralogy of acid sulfate soils and potential utilization of green manures as acid soil amenaments. . Hawaii:University of Hawaii, 1994.
Sunthorn Poolpipatana. (1994) Chemistry and mineralogy of acid sulfate soils and potential utilization of green manures as acid soil amenaments . University of Hawaii/Hawaii.