RIYADH: The presidents of six of the Kingdom's universities had their services extended for four years by Royal order Saturday. The six are: Dr. Abdullah Al-Rashid of King Khaled University; Dr. Mohammad Al-'Aqla of the Islamic University; Dr. Yousuf Al-Jandan of King Faisal University; Dr. Abdullah Al-Othman of King Saud University; Dr. Sulaiman Abaalkhail of Imam Muhammad Bin Saud Islamic University, and Dr. Khalid Al-Sultan of King Fahd University for Petroleum and Minerals. Also having his service extended for the same period by the royal order was Salih Al-Khulaiwi, Director General of Customs.