الفترة:
Subjects: Animals; Neoplasms; Cows; Diseases
Subjects: Kidneys; Lemon; Microbiology; Diseases; Mouth
Subjects: Malaria; Yemen; Diagnosis
Subjects: Partial differential equations
Subjects: Algebraic fields
Subjects: Humidity; Fertilizers; Wheat
Subjects: Humanities; Arabic philosophy; Philosophy
Subjects: Education; Higher education; Learning; English language
Subjects: Working class
Subjects: Drama
Subjects: Biomolecules; Organic chemistry; Organic compounds; Carbohydrates
Subjects: Yemen; Children; Diseases
Subjects: Jaws; Diseases; Mouth
Subjects: Education; Learning; Yemen; Computers
Subjects: England; Literature; Nineteenth century; Woman; History
Subjects: Literary criticism
Subjects: Knees; Programmed instruction; Wounds and injuries; Data processing; Surgery
Subjects: Education; Higher education; Learning; Second language learning; Yemen