Arabic language 1,628 Analysis 905 Attitudes 820 Academic achievement 314 Ability testing 284 Accounting 194 Automation 182 Authorities 178 Administration 138 Artificial intelligence 136 Antioxidants 135 Arabic poetry 134 Automatic control 127 Aids and devices 124 Agriculture 121 Automobiles 112 Armed Forces 111 Absorption and adsorption 109 Anesthesiology 99 Advertising 91 Auditing 91 Architecture 87 Air 79 Alkaloids 68 Alternative treatment 67 Algorithms 65 Art 65 Academic libraries 64 Additives 64 Aged 63 Arabic literature 63 Activity programs 51 Adsorption 51 Automobile industry and trade 51 Adolescent 50 Air conditioning 50 Antineoplastic agents 50 Asthma 50 Access control 49 Automatic speech recognition 48 Authorship 47 Anatomy 46 Anxiety 43 Apoptosis 42 Architecture, Domestic 41 Annonaceae 40 Application software 39 Academic writing 38 Autistic children 38 Aims and objectives 37 Alloys 37 Arabic 36 Arabic language -- 34 Attitude 34 Airlines 33 Aluminum alloys 33 Adaptive control systems 32 Adat law 32 Audio-visual aids 31 Auditing, Internal 31 AIDS (Disease) 30 Adjustment (Psychology) 30 Adolescent psychology 30 Anti-Bacterial Agents 30 Air quality 29 Airplanes 29 Antennas (Electronics) 29 Astronomy 29 Antiquities 28 Asynchronous transfer mode 28 Air quality management 26 Antibacterial agents 26 Ad hoc networks (Computer networks) 25 Aluminum 25 Academic Medical Centers 24 Anti-infective agents 24 Atomic absorption spectroscopy 24 Algae 23 Anaesthesiology 23 Animals 23 Apostasy 23 Arthritis, Rheumatoid 23 Auditors 23 Accidents 22 Antibiotics 22 Athletes 22 Adjective 21 Adult education 21 Aedes 21 Aerodynamics 21 Analytic functions 21 Apocynaceae 21 Abbasids 20 Acquired Immunodeficiency Syndrome 20 Adolescence 20 Adultery (Islamic law) 20 Analgesics 20 Authorities Criticism, interpretation, etc 20 Activated sludge process 19 Amino acids 19