/lit/ - Literature

For Pakistan, anything by Allama Iqbal, Saadat Hassan Manto or Faiz Ahmad Faiz.

For Nigeria, Chinua Achebe. There are a lot of great south American guys too, like Pablo Neruda and Luis Borges. Also, for Portugal, there's The Book of Disquiet by Pessoa. I can't think of anything else off the top of my head.