1. A simple method for the quality control of poured agar plates using sterile dipstrips;Clayton;Mast Matters No. 13,1977
2. Quality assessment of culture media by the Miles-Misra method;Corry,1982
3. A semiautomatic instrument for the determination of gel rigidity in microbiological nutrients and gelling agents;Costin,1978
4. Quality assurance and quality control of ingredients for microbiological culture media;Costin,1982
5. Spiral plate method for bacterial determination;Gilchrist;Appl. Microbiol.,1973