linkedin.com (Firm) & Guttormsen, T. (2021). Confidence: How to Overcome Self-Doubt, Insecurity, and Fears. linkedin.com.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रlinkedin.com (Firm) और TJ Guttormsen. Confidence: How to Overcome Self-Doubt, Insecurity, and Fears. Carpenteria, CA: linkedin.com, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रlinkedin.com (Firm) और TJ Guttormsen. Confidence: How to Overcome Self-Doubt, Insecurity, and Fears. linkedin.com, 2021.
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