Van Zyl, Llewellyn Ellardus.

Evidence-based positive psychological interventions in multi-cultural contexts by: SpringerLink (Online service); Van Zyl, Llewellyn Ellardus.; Rothmann Sr., Sebastiaan. (Language materials, printed)

Theoretical approaches to multi-cultural positive psychological interventions by: Van Zyl, Llewellyn Ellardus.; SpringerLink (Online service); Rothmann, Sebastiaan. (Language materials, printed)

Evidence-Based Positive Psychological Interventions in Multi-Cultural Contexts by: Rothmann Sr., Sebastiaan.; Van Zyl, Llewellyn Ellardus.; SpringerLink (Online service) (Language materials, printed) , [http://id.loc.gov/vocabulary/relators/edt]

Positive psychological intervention design and protocols for multi-cultural contexts by: Rothmann, Sebastiaan.; Van Zyl, Llewellyn Ellardus.; SpringerLink (Online service) (Language materials, printed)

Theoretical Approaches to Multi-Cultural Positive Psychological Interventions by: SpringerLink (Online service); Van Zyl, Llewellyn Ellardus.; Rothmann Sr., Sebastiaan. (Language materials, printed) , [http://id.loc.gov/vocabulary/relators/edt]

Positive Psychological Intervention Design and Protocols for Multi-Cultural Contexts by: Van Zyl, Llewellyn Ellardus.; Rothmann Sr., Sebastiaan.; SpringerLink (Online service) (Language materials, printed) , [http://id.loc.gov/vocabulary/relators/edt]