| Of Little Faith: The Politics of George W A Black, DL Koopman, DK Ryden Bush’s Faith-Based Initiatives, 75–99, 2004 | 142* | 2004 |
| Of little faith: The politics of George W. Bush's faith-based initiatives AE Black, DL Koopman, DK Ryden Georgetown Univ Pr, 2004 | 139 | 2004 |
| The disappearing God gap?: religion in the 2008 presidential election C Smidt, K den Dulk, B Froehle, J Penning, S Monsma, D Koopman Oxford University Press, 2010 | 120 | 2010 |
| Pews, prayers, and participation: Religion and civic responsibility in America CE Smidt Georgetown University Press, 2008 | 82 | 2008 |
| Hostile Takeover: The House Republican Party, 1980-1995 DL Koopman Rowman & Littlefield Pub Inc, 1996 | 77 | 1996 |
| Religion and the Bush presidency MJ Rozell, G Whitney Palgrave Macmillan, 2007 | 28 | 2007 |
| Religion and American Public Policy: Morality Policies and Beyond DL Koopman | 14 | 2009 |
| Understanding American Politics S Brooks, D Koopman, JM Wilson University of Toronto Press, 2013 | 11 | 2013 |
| The Politics of Faith-Based Initiatives AE Black, DL Koopman Religion and the Bush Presidency, 155-175, 2007 | 8 | 2007 |
| Of little faith: The politics of AE Black, DL Koopman, DK Ryden Notes 243, 2004 | 5 | 2004 |
| Volunteer mentors in social welfare: Who they are and what happens when they mentor PH Jonker, DL Koopman Social Work and Christianity 27 (2), 168-187, 2000 | 5 | 2000 |
| Religion and American politics: classic and contemporary perspectives AE Black, DL Koopman, LA Hawkins (No Title), 2011 | 4 | 2011 |
| The House of Representatives Under Republican Leadership: Changes by the New Majority D Koopman annual meeting of the American Political Science Association, Chicago, 1995 | 4 | 1995 |
| The Status of Faith-BAsed Initiatives in the Later Bush Administration DL Koopman Church-State Issues in America Today 1, 2007 | 3 | 2007 |
| The 1994 House Elections: A Republican View DL Koopman Extension of Remarks: New Dimensions in Legislative Research: Something Old …, 1994 | 3 | 1994 |
| Reformed Christian scholarship and American politics: review essay DL Koopman Christian scholar's review 29 (3), 589-608, 2000 | 2 | 2000 |
| Religion and Politics Series A Black, C Cochran, A Gill, G Layman, L Olson, C Smidt, M Segers, ... Of Little Faith: The Politics of George W. Bush’s Faith-Based Initiatives, 2004 | 1 | 2004 |
| Faith-Based Initiatives: An Essay on the Politics of Social Service Change DL Koopman Christianity and Social Work: Readings on the Integration of Christian Faith …, 2002 | 1 | 2002 |
| Robert Mason, The Republican Party and American Politics from Hoover to Reagan, reviewed by Douglas L Koopman DL Koopman Party Politics 20 (1), 144-145, 2014 | | 2014 |
| What Democrats Talk About When They Talk About God: Religious Communication in Democratic Party Politics DL Koopman Journal of Church and State 53 (2), 329-331, 2011 | | 2011 |
