Panko, P., Curtis, J., Gorrall, B., & Little, T. (2015). Alternatives to Randomized Control Trials: A Review of Three Quasi-experimental Designs for Causal Inference.
استشهاد بنمط شيكاغوPanko, Pavel, Jacob Curtis, Brittany Gorrall, و Todd Little. Alternatives to Randomized Control Trials: A Review of Three Quasi-experimental Designs for Causal Inference. 2015.
MLA استشهادPanko, Pavel, Jacob Curtis, Brittany Gorrall, و Todd Little. Alternatives to Randomized Control Trials: A Review of Three Quasi-experimental Designs for Causal Inference. 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.