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- [21] PREVALENCE OF PNEUMOCOCCI WITH INCREASED RESISTANCE TO PENICILLIN IN SAUDI-ARABIA ANNALS OF TROPICAL MEDICINE AND PARASITOLOGY, 1991, 85 (02): : 259 - 262
- [30] COPPER DEFICIENCY IN NAJDI SHEEP IN CENTRAL SAUDI-ARABIA INDIAN VETERINARY JOURNAL, 1992, 69 (09): : 782 - 785