Range:
Subjects: Arabic language; Discourse analysis; Semantics; Synonyms and antonyms; The holy koran
Subjects: Macromolecules; Sewage sludge
Subjects: Education; Educational technology; Higher education; Learning; Programmed instruction
Subjects: Clothing; Commerce; Jordan
Subjects: Cadmium; Nuclear energy; Nuclear physics
Subjects: Mathematical models
Subjects: Palestine