الفترة:
Subjects: Dietary supplements; Microbiology
Subjects: Semantics; Arabic language; English language
Subjects: Fluid dynamics
Subjects: Cancer; Hadramawt; Yemen
Subjects: Names of persons; Arabic language; Social aspects; Yemen
Subjects: Microbiology
Subjects: Democracy; Literature; Nineteenth century; Twentieth century; United States
Subjects: Arabic language; Grammar
Subjects: Hypertension; Pregnancy
Subjects: Yemen; Diseases
Subjects: Mukalla; Yemen
Subjects: Okra; Plants; Development; Nitrogen
Subjects: Education; Learning; Teachers; English language
Subjects: Yemen