Christian Scholarship in the Twenty-First Century, edited by Thomas M. Crisp, Steve L. Porter and Gregg A. Ten Elshof (Eerdmans, 2014).
Elizabeth Lewis Hall, a US psychologist who works at Biola, writes a chapter in this book called “Structuring the Scholarly Imagination: Strategies for Christian Engagement with the Disciplines” (pp. 97-124). This article has helped me begin to define what integration means for me and what it might mean for those I seek to encourage. You can also get a lot of the content through this video: https://cct.biola.edu/structuring-the-scholarly-imagination/
In brief, Christian faith can contribute to your motivation for studying, the epistemology you use when you study, the content of what you study, the process by which you study, or the outcomes of your study. Lewis Hall understandably gives more attention to content than the others. She explains that sometimes faith can tell us what study questions are worth entering into, and sometimes it can provide a broader (biblical, moral, or eschatological) framework in which to contextualize the answers we find. Sometimes faith can fill in the gaps in (i.e., complement) the answers we find. For instance, science can perhaps describe a phenomenon but not determine its purpose or meaning.