APA (7 वां संस्करण) प्रशस्ति पत्र
Karlen, J., & Karlen, P. (2014). Early stress, cortisol in hair and health among children in different psychosocial environments. Linkoping University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Karlen, Jerker, और Per Karlen. Early Stress, Cortisol in Hair and Health Among Children in Different Psychosocial Environments. Linkoping, Sweden: Linkoping University, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Karlen, Jerker, और Per Karlen. Early Stress, Cortisol in Hair and Health Among Children in Different Psychosocial Environments. Linkoping University, 2014.
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