Dictionaries 198 Malay language 136 Causes 101 Drug abuse 79 English language 79 History 73 Mass media 73 Weapons of mass destruction 56 Islam 52 Thesis 52 English 50 Maps 44 Juvenile literature 41 World War, 1939-1945 40 Prevention 39 Case studies 37 Quotations, maxims, etc 35 Terrorism 34 Foreign relations 33 Malay 33 Politics and government 32 Drugs 31 Fiction 30 Political aspects 29 Armed Forces 28 Dissertations 28 Law and legislation 28 Arabic language 27 World politics 27 United States 24