2Müller,Florian H,J.Louw.Learning Enviroment,Mo-tivation and Interest:Perspectives on Self-determinationTheory[].South African Journal of Psychology.2004
3Zalenski,Robert J,R.Raspa.Maslow’’s Hierarchy ofNeeds:A Framework for Achieving Human Potential inHospice[].Journal of Palliative Medicine.2006