British Psychodrama Association (BPA) has a huge amount of resources available on their website including links to other organisations, papers, and information about books. Please visit their resources section to learn more https://www.psychodrama.org.uk/resources/
United Kingdom Council for Psychotherapy (UKCP) http://psychotherapy.org.uk
The Federation of European Psychodrama Training (FEPTO) fepto.com
The American Society for Group Psychotherapy and Psychodrama (ASGPP) https://asgpp.org/
Suggested reading:
Dr Scott Giacomucci “Social work, Sociometry, and Psychodrama: Experiential Approaches for group therapists, Community Leaders and Social workers”
This is an open access book which can be downloaded for free here: https://link.springer.com/book/10.1007/978-981-33-6342-7
Psychodrama Scotland 