Adu, Peter, Popoola, Tosin, Roemer, Anja, Collings, Sunny, Aspin, Clive, Medvedev, Oleg N., Simpson, Colin R.. Hogrefe Publishing Group; 2023. Validation and Cultural Adaptation of the Motors of COVID-19 Vaccination Acceptance Scale (MoVac-COVID19S) in German.

Adu, Peter, Popoola, Tosin, Collings, Sunny, Aspin, Clive, Medvedev, Oleg N., Simpson, Colin R.. Springer; 2024. Psychometric properties of the motors of COVID-19 vaccination acceptance scale in New Zealand: Insights from confirmatory factor analysis.