Guenaelle, P. 1995. One methodology to evaluate automotive seat comfort. Proceedings of the Third International Conference on Vehicle Comfort and Ergonomics. March 29-31. Bologna. Italy.
Gupta, P. K., Gupta, M. L. and Sharm, A. P. 1983. Anthropometric survey of Indian farm workers.
AMA-Agr. Mech. Af. 14(1): 27-30.
Gyi, D. E., Porter, J. M. and Robertson, K. B. 1998. Seat pressure measurement technologies: considerations for their evaluation. Appl. Ergon. 27(2): 85-91.
Mganilwa, Z. M., Mpanduji, S. M., Makungu, P. J. and Dihenga, H. O. 2003. Promoting local production of small multipurpose tractors in Tanzania. International Conference on Industrial Design Engineering. July 17-18. UDSM, DAR ES SALAAM,
Miyamoto, M., Shirai, Y., Nakayama, Y., Gembung, Y. and Kaneda, K. 2000. An epidemiologic study of occupational low back pain in truck drivers. J. Nippon Med. Sch. 67(3): 186-190.
Porter, J. M. and Gyi, D. E. 1998. Interface pressure and the prediction of car seat discomfort. Int. J. Vehicle Des. 19(3): 255-266.
Rasmussen, J., Trholm, S. and Zee, M. D. 2009. Computational analysis of the influence of seat pan inclination and friction on muscle activity and spinal joint forces. Int. J. Ind. Ergonom. 39, 52-57.
Rostami, M. A., Javadi, A., Heidari-Soltanabadi, M., Mehdinia, A. and Shaker, M. 2015. Ergonomic assessment of some commonly used tractors in Iran. J. Agric. Mech. 5(2): 456-467. (in Persian)
Sanders, S. M. and McCormic, E. J. 1987. Human Factors in Engineering and Design. McGraw-hill Book Company.
Smith, D. W., Sims, B. G. and Neil, D. H. O. 1994. Testing and evaluation of agricultural machinery and equipment. Principle and practices. FAO Agricultural Services Bulletin. No. 110.
Studman, C. 1998. Ergonomic in apple sorting: a pilot study. J. Agric. Eng. Res. 70, 323-334.
Tse, J. L. M. 2006. Bus driver well-being review: 50 years of research. Transpor. Res. F. 9, 89-114.
Whyte, R. T. and Stayner, R. M. 1985. Design criteria for tractor seats. Proceedings of the 8th Joint CIGR/AAMRH/IUFRO Ergonomics Conference. Silsoe, Bedfordshire.
Woodson, W. E. and Berry, T. P. 1992. Human Factors Design Handbook. McGraw – Hill Book Company.
Yadav, R. and Tewari, V. K. 1998. Tractor operator Workplace design-a review. J. Terramechanics.
35(1): 41-53.
Yisa, M. G. 2002. Ergonomic of tractor assembled in Nigeria. Biosys. Eng. 81(2): 169-177.