It is absolutely 100% false that Pakistan did not allow US citizens to enter with a US passport in 1981 or at any other time between 1947 and 2018.
I worked in 1981 with US citizens who went back and forth to Pakistan all the time.
I comment on this every time it is posted. It is false and anyone who wants to can disprove it in five minutes with a computer.
wouldnt he have to show his indonesian passport to register as a foreign student at occidental college.