Textbook: Bartholomew Eldredge, R.K., Markham, C.M., Ruitter, R.A.C., Fernández, M., Kok, G., & Parcel, G. (2016). Intervention mapping step 3: Program design and Intervention mapping step 4: Program production. In Planning Health Promotion Programs: An Intervention Mapping Approach (4th ed., pp. 345–476). San Francisco: Jossey-Boss.