If you need a of APK-to-TPK conversion principles, here's an outline you could expand into a short paper:
– TPKs are for Samsung's Tizen OS (used mainly on older smartwatches, TVs). Tizen app development has largely been deprecated in favor of Wear OS. Writing a paper on converting Android apps to a deprecated platform has limited legitimate use. Androzen Plus Apk To Tpk Converter