Sénégal (1) Data processing (1) Competitions (1) Methods (1) Composition and exercises (1) Internet in education (1) World Wide Web (1) Multimedia systems (1) Teaching (1) Teachers (1) Radio in education (1) Production (Economic theory) (1) Pharmacy (1) Oral communication (1) Navigation (1) Maintenance (1) Learning (1) Hiking (1) Goal (Psychology) (1) Educational tests and measurements (1) Education (1) Dentistry (1) Communication in science (1) Backpacking (1) Audio-visual materials (1) Audio-visual equipment (1) Methods (1) Use studies (1) Use studies (1) Web-based instruction (1)