https://smartprep.in/wp-content/uploads/2016/12/NCERT-Class-11-Psychology.pdf (NCERT Psychology Books for Ethics Paper 1)
https://smartprep.in/wp-content/uploads/2016/12/NCERT-Class-12-Psychology.pdf (NCERT Psychology Books for Ethics Paper 2)
https://www.soas.ac.uk/cedep-demos/000_P563_EED_K3736-Demo/module/pdfs/p563_unit_01.pdf (Ethics for Environment and Development)
https://soaneemrana.org/onewebmedia/Professional%20Ethics%20and%20Human%20Values%20by%20R.S%20NAAGARAZAN.pdf ( Professional Ethics and Human Values by R.S NAAGARAZAN)