This free course was written by Anna E Crossland and updated by Sarah Parker, both from Middlesbrough College using materials belonging to The Open School Trust Ltd. (trading as the National Extension College), in partnership with Bedford College Group, West Herts College and The Open University. Copyright in this material belongs to The Open University, 2019.
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237294: Course Cover Image: © sturti / iStock / Getty Images Plus
Session 3: Figures 3 and 4: taken from Stagecoach UK Bus.
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