Putthima P, Tuntinakhongul A, Tungkunanan P. Factors Analysis of Leadership in the 21st Century of Department Heads Under the Vocationnal Education in Central Region of Thailand. RMUTT J Hum Soc Sci [internet]. 2021 May 31 [cited 2026 Aug. 28];8(1):51-67. available from: https://so05.tci-thaijo.org/index.php/RMUTI_SS/article/view/250024