Hikoichi، Y. (1978). Maritime Activities Of The Gulf People and The Indian Ocean World In THe 11 TH - 12 Th Centuries. مجلة التربية، ع30 ، 9. مسترجع من http://search.mandumah.com/Record/680995
Hikoichi، Yajima. "Maritime Activities Of The Gulf People and The Indian Ocean World In THe 11 TH - 12 Th Centuries." مجلة التربية ع30 (1978): 9. مسترجع من http://search.mandumah.com/Record/680995