The set of keywords I used to find these sources were “superheroes,” “hero-worship,” “comic books,” and “female leadership”:
Denison, Rayna, and Rachel Mizsei-Ward, editors. Superheroes on World Screens. University Press of Mississippi, 2015.
Di Paolo, Marc. War, Politics and Superheroes: Ethics and Propaganda in Comics and Film. McFarland & Company, Inc., Publishers, 2011.
Mann, Ron. Comic Book Confidential. Public Media Inc. : Home Vision Entertainment [distributor], 2002.
O’Connor, Karen. Gender and Women’s Leadership: A Reference Handbook. 2010. SAGE Knowledge, doi:10.4135/9781412979344.
Sorensen, David R., et al., editors. On Heroes, Hero-Worship, and the Heroic in History. Yale University Press, 2013.
Weschenfelder, Gelson Vanderlei, and Ana Colling. “Superheroines Comics: From the
Feminist Movement to Gender Issues.” INTERthesis, vol. 8, no. 1, July 2011, pp. 200–18.