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- [5] COLORIMETRIC METHOD FOR ESTIMATION OF ZINEB JOURNAL OF THE ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS, 1971, 54 (05): : 1120 - +
- [7] COLORIMETRIC METHOD OF ESTIMATION OF ERYTHROMYCIN CANADIAN JOURNAL OF PHARMACEUTICAL SCIENCES, 1975, 10 (02): : 59 - 61
- [9] A COLORIMETRIC METHOD FOR THE ESTIMATION OF COLCHICINE JOURNAL OF THE AMERICAN PHARMACEUTICAL ASSOCIATION-SCIENTIFIC EDITION, 1951, 40 (09): : 424 - 427