De Allegri, M., & Lohmann, J. (2023). Embracing emergence in mixed methods designs: Theoretical foundations and empirical applications. In C. N. Poth (Ed.), The SAGE handbook of mixed methods research design (pp. 101–113). Sage. https://doi.org/10.4135/9781529682663.n13 

De Allegri and Lohmann discuss emergence in mixed methods design – when it can occur and how to manage it.

Maxwell, J. A., & Loomis, D. (2003). Mixed method design: An alternative approach. In A. Tashakkori & C. Teddlie (Eds.), Handbook of mixed methods in social and behavioral research (pp. 241–271). Sage.

Maxwell and Loomis present an ‘interactive’ model for research design as an alternative to more linear typological approaches.

Gorard, S. (2010). Research design, as independent of methods. In A. Tashakkori & C. Teddlie (Eds.), Handbook of mixed methods in social and behavioral research (2nd ed., pp. 237–251). Sage. https://doi.org/10.4135/9781506335193

Gorard (2010) argues for alternative models of a ‘natural’ research process on the basis that ‘there is only research’; one where there is no need to specify a ‘q-word’ or even ‘mixed’ or ‘multiple’ methods because most questions benefit from use of a wide range of data.