1. Recent high-temperature research on silicates and its significance in igneous geology;Bowen;Am. J. Sci.,1937
2. Picritic rocks of the North Lebombo and South-East Zimbabwe;Bristow,1984
3. Petrographic Modal Analysis: An Elementary Statistical Appraisal;Chayes,1956
4. Granitoid Rocks;Clarke,1992
5. The Interpretation of Igneous Rocks;Cox,1979