Working with vulnerable population is a staple for social workers. Discussion about types of policy practice (including policy-sensitive practice, policy-related practice, and policy advocacy) and some real life examples of participating in policy advocacy through legislative advocacy, social advocacy, and policy analysis.
Figueira-McDonough, J. (1993). Policy practice: The neglected side of social work intervention. Social Work, 38(2), 179–188.
Jansson, B. (2014). Brooks/Cole empowerment series: Becoming an effective policy advocate (7th ed.). Belmont, CA: Brooks/Cole, Cengage Learning.