Gaya APA

Review, H, B., Seligman, M, E, S. (2018). E-book HBR's 10 Must Reads on MENTAL TOUGHNESS . : .

Gaya MLA

Review, Harvard, Business., Seligman, Martin, E.P., S. "E-book HBR's 10 Must Reads on MENTAL TOUGHNESS". : , 2018. Text.