Supavanee Thimthong และ Nanta Sooraksa. (2018) The development of safety culture assessment and its validation: case study of Thai truck drivers. National Institute of Development Administration:ม.ป.ท.Supavanee Thimthong และ Nanta Sooraksa. 2018. The development of safety culture assessment and its validation: case study of Thai truck drivers. ม.ป.ท.:National Institute of Development Administration;Supavanee Thimthong และ Nanta Sooraksa. The development of safety culture assessment and its validation: case study of Thai truck drivers. ม.ป.ท.:National Institute of Development Administration, 2018. Print.