William Facey (1987). "The boat carvings at Jabal Al-Jussasiyah, northeast Qatar". Proceedings of the Seminar for Arabian Studies. ج. 17: 199 of 222. JSTOR:41223055.
William Facey (1987). "The boat carvings at Jabal Al-Jussasiyah, northeast Qatar". Proceedings of the Seminar for Arabian Studies. ج. 17: 200 of 222. JSTOR:41223055.
William Facey (1987). "The boat carvings at Jabal Al-Jussasiyah, northeast Qatar". Proceedings of the Seminar for Arabian Studies. ج. 17: 201 of 222. JSTOR:41223055. The battil and baqqarah at Jabal al-Jussasiyah cannot therefore be earlier than 1000–1200 AD.
William Facey (1987). "The boat carvings at Jabal Al-Jussasiyah, northeast Qatar". Proceedings of the Seminar for Arabian Studies. ج. 17: 203 of 222. JSTOR:41223055.
William Facey (1987). "The boat carvings at Jabal Al-Jussasiyah, northeast Qatar". Proceedings of the Seminar for Arabian Studies. ج. 17: 205 of 222. JSTOR:41223055.