Dr. Omaima El Tahir Babikir Mohamed provides advice on completing a PhD dissertation. She notes that a dissertation is a major research challenge as there is no simple approach and committees provide subjective evaluation. She recommends allocating sufficient time, focusing on one chapter at a time, maintaining a relationship with supervisors, and presenting a proposal. Dr. Mohamed also discusses literature reviews, data collection and analysis methods, examination, the viva voce defense, and final dissertation formatting and submission.