You can start with this website http://nigeria.usembassy.gov/ A letter of invitation is usually advised. They may also need to show strong ties to their country, such as family, a job, home, a bank account.
Quick Answer. Over one billion Muslims live in Asia, which makes it the continent with the highest Muslim population. Indonesia is the country with the largest Muslim population, with 209 million people. Continue Reading.
A study made by the Union of Islamic Communities of Spain demonstrated that there were about 1,700,000 inhabitants of Muslim background living in Spain as of 2012, accounting for 3â4% of the total population of Spain.