Source: https://www.researchgate.net/publication/354922743_Investigating_Mechanical_Engineering_Learners'_Satisfaction_with_a_Revised_Monozukuri_MOOC/fulltext/61545e7ffd7b3d12155cfca6/Investigating-Mechanical-Engineering-Learners-Satisfaction-with-a-Revised-Monozukuri-MOOC.pdf