Czerwiński, Stanisław K., i Paweł A. Atroszko. 2020. „Scores of Short and Free Scale for Big Five Explain Perceived Stress at Different Stages of Life: Validity, Reliability and Measurement Invariance of the Polish Adaptation of Mini-IPIP”. Current Issues in Personality Psychology 8 (1):73-82. https://doi.org/10.5114/cipp.2020.95149.