Comparison of some methods for the determination of total sulfur in plant tissues. 1996. Soon, Y.K.; Kalra, Y.P.; Abboud, S.A. Community Soil Science Plant Analysis 27(3&4): 809-818.
Environmental soil science - anthropogenic chemicals and soil quality criteria. Proceedings of a joint symposium of the Canadian Land Reclamation Association and the Canadian Society of Soil Science, August 10-11, 1992, Edmonton, Alberta. 1995. Powter, C.B.; Abboud, S.A.; McGill, W.B., editors. Canadian Society of Soil Science, Brandon, Manitoba. 273 p.