Law and legislation 480 Language 409 Language, style 271 Leadership 256 Language and languages 244 Legal status, laws, etc 137 Lasers 107 Learning, Psychology of 94 Land use 77 Lexicology 76 Learning strategies 74 Local government 66 Land tenure 59 Literature 54 Language acquisition 51 Legal status, laws, etc. (Islamic law) 51 Lubrication and lubricants 51 Lexicography 50 Lipids 48 Language and culture 47 Ligands 46 Law 45 Loans (Islamic law) 45 Labor supply 44 Learning 42 Languages 40 Lithium cells 37 Light emitting diodes 33 Linguistics 32 Labor turnover 30 Literacy 30 Labor productivity 29 Learning disabled children 29 Liver 29 Language teachers 28 Lauraceae 28 Latex 27 Load dispatching 27 Lupus Erythematosus, Systemic 27 Lead 26 Learning disabilities 26 Linguistic analysis (Linguistics) 26 Libraries 24 Landscape architecture 23 Language and education 23 Lignocellulose 23 Land tenure (Islamic law) 22 Land titles 22 Leaching 22 Liquid chromatography 22 Low-income housing 22 Land settlement 21 Landslides 21 Laryngeal Masks 21 Liberalism 21 Local area networks (Computer networks) 21 Local transit 21 Language, style Arabic 20 Liquid crystals 20 Location 19 Laboratories 18 Laboratory manuals 18 Land reform 18 Liability (Law) 18 Lubricating oils 18 Larvae 17 Lighting 17 Labor market 16 Laminated materials 16 Light 16 Lightweight concrete 16 Listening 16 Lecturers 15 Legumes 15 Leukemia 15 Life skills 15 Lifestyles 15 Lipase 15 Logic 15 Labor laws and legislation 14 Language disorders in children 14 Leachate 14 Lean manufacturing 14 Library use studies 14 Long-Term Evolution (Telecommunications) 14 Landslide hazard analysis 13 Learning ability 13 Library applications 13 Listening comprehension tests 13 Literature and society 13 Liver Neoplasms 13 Logging 13 Laccase 12 Lactic acid bacteria 12 Language planning 12 Laser pulses, Ultrashort 12 Lectures and lecturing 12 Leg 12 Leisure 12 Librarians 12