1. ANSYS. (2019). ANSYS Software Manual: 2019 R1. Canonsburg: ANSYS, Inc..
2. Choi, N. C., Lee, S. M., Shim, J. S., Kim, S. M., Lee, K. K., & Lee, S. H. (2010). Ergonomic design and analysis of truck footstools. Journal of Society for Computational Design and Engineering, 2010(1), 377–382 (In Korean).
3. Germanischer Lloyd, S. E. (2010). GL Guideline 2010: Guideline for the certification of offshore wind turbine workplace, access and exit – dimensions. Hamburg: Germanischer Lloyd.
4. ISO. (2007). ISO-4252: Agricultural tractors – operator’s workplace, access, and exit – dimensions. Geneva: International Organization for Standardization.
5. Kim, Y. Y. 2017. Study about the effect on agricultural management bodies’ income by using ICT·BT and types of the 6th agricultural industry. Unpublished MS thesis. Iksan, Jeollabuk-do: Department of Administration, Wonkwang University.