If you are looking for academic literature related to transgender or transsexual experiences (often involving "phone" or voice therapy), you might be interested in these:
Effects of speech therapy for transgender women: A systematic review shemale phone
: This is a paperback book (vernacular Chinese) available through AbeBooks . Academic & Research Papers If you are looking for academic literature related
For visual projects or presentations, various stock photo platforms offer images featuring transsexual individuals using phones or holding paper messages: shemale phone
: A systematic review on the effects of speech therapy for transgender women, which often focuses on vocal "phone" characteristics, can be found on PubMed Central .