The Way To Happiness Based on:  "Happiness Between Illusion And Reality" By Dr. Nasser Al-Omar And "Causes Of Happiness" By Sheikh Abdur-Rahman Al-Sa'adi. Preparing by:  Ghalib Ahmad Masri And Nathif Jama Adam. Original language:  English. Revised by:  Co-Operative Office For Call And Guidance In Al-Bat'ha. Publishing date:  04/1420H. ISBN:  9960-798-22-4.