I am trying to research on themes to help me with my research hypothesis; Sustainability in South African Banks:

I am trying to research on themes to help me with my research hypothesis; Sustainability in South African Banks:

An exploration on Leadership perception, attitudes and behaviour.

I would like to build my theme around:

1. Leadership Perceptions about Sustainability 2. Leadership Attitudes about sustainability 3. Leadership Behaviour on Sustainability

I therefore require the relevant existing theories by authorities that will be relevant to build my on my hypothesis, are you able to assist? So far, I have a lot of downloaded articles