Baharuddin Mustapha
Politeknik Sultan Salahuddin Abdul Aziz Shah
Verified email at psa.edu.my
Cited by 341
Manuel Schappacher
Offenburg University of Applied Sciences
Verified email at hs-offenburg.de
Cited by 228
Manuel Andrés Vélez-Guerrero
Researcher / Full Professor Universidad Pedagógica y Tecnológica de Colombia
Verified email at uptc.edu.co
Cited by 181