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- [1] COMPARISON BETWEEN INDIRECT AND DIRECT CONTACT COOLING METHODS FOR THE CRYSTALLIZATION OF POTASSIUM-SULFATE CHEMICAL ENGINEERING RESEARCH & DESIGN, 1984, 62 (05): : 296 - 302
- [4] A COMPARISON OF THE DIRECT AND INDIRECT RADIOACTIVE METHODS FOR DETERMINING THE SURFACE AREA OF A STRONTIUM SULPHATE PRECIPITATE CANADIAN JOURNAL OF RESEARCH SECTION B-CHEMICAL SCIENCES, 1949, 27 (04): : 238 - 257
- [6] COMPARISON BETWEEN DIRECT AND INDIRECT UHT PROCESSING METHODS FOR MILK DAIRY INDUSTRIES, 1972, 37 (04): : 197 - &