Price is in US dollars and excludes tax and handling fees
Man in grey suit standing and presenting with remote on lecture theatre stage near whiteboard
Female student in white blouse, pink trousers writing at lecture desk with blue pen on textbook
Adult woman writing in notebook in lecture hall, wearing white blouse, holding blue pen, copy space
Teacher classroom student school chalkboard smiling lesson education Asian teacher smiling
Student, classroom, teacher, chalkboard, raised hand during school lesson with blurred instructor
