Alia has chosen to give a speech on freud's psychoanalytic theory of personality. her presentation is next week and, while she has already done a great deal of research, she is having difficulty understanding some of freud's concepts. she knows that she needs more information, but she also needs to make sure she is using high-quality, highly knowledgeable sources. what would be the most effective way for alia to acquire the information she needs in this situation?