. Adult-learning-australia, Adult learning principles, 2020.

A. Bandura, Self-efficacy. The exercise of control, Division of Educational Studies, Information on Self-Efficacy: A Community of Scholars. Beaumont, L. R, 1997.

L. M. Blaschke, Heutagogy and Lifelong Learning: A Review of Heutagogical Practice and Self-Determined Learning, 2012.

M. R. Chowdury, 4 Ways To Improve And Increase Self-Efficacy, 2020.

S. Choy and B. Delahaye, Andragogy in Vocational Education and Training: Learners' perspective, 2002.

J. Collins, Education Techniques for Lifelong Learning, RadioGraphics, vol.24, pp.1483-1489, 2004.

S. Cordiner, The 8 Fundamental Principles Of Adult Learning That Every Course Creator & Training Professional Should Know, 2020.

L. Davis, Heutagogy Explained: Self-Determined Learning in Education, 2018.

, European Crane Operators Licence, European Association of Abnormal transport and Mobile Cranes, 2020.

D. Fidishun, Andragogy and technology: Integrating adult learning theory as we teach with technology. Paper presented at the Instructional Technology Conference, 2000.

E. Franzoso, The Difference between Responsibility and Accountability, 2018.

S. Hase and C. Kenyon, Why is machinery safety important?, 2000.

T. Holmes, , 2014.

, Principles for Teaching Adult Learners

M. Knowles, The modern practice of adult education: Andragogy versus pedagogy, 1970.

, ies.ccsenet.org International Education Studies, vol.13, issue.10, 2020.

M. Knowles, The adult learner: A neglected species, 1990.

B. Mccombs, Developing Responsible and Autonomous Learners: A Key to Motivating Students, 2020.

R. Mowson, Adult Learning Principles and Styles: Area's to Consider When Delivering Training, 2018.

V. Narayan, J. Herrington, and T. Cochrane, Design principles for heutagogical learning: Implementing student-determined learning with mobile and social media tools, Australasian Journal of Educational Technology, vol.35, issue.3, 2019.

D. Peterson, , 2019.

, Principles for the Teacher of Adults

C. R. Rogers, Freedom to learn, 1969.

, Work-related injury fatalities -Key WHS statistics Australia, 2019.

, Learning Styles, 2020.

P. Smith and J. Dalton, Accommodating learning styles: Relevance and good practice in VET, 2005.

S. Thompson, 7 Adult Learning Principles Every Online Educator Should Know, 2019.

B. Watson, Adult learning theory and the six principles of adult learning, 2015.

, Guide to machinery and equipment safety. State of Queensland, Workplace Health and Safety Queensland, 2019.