Dale A Carnegie, Ajay Kapur, Gideon Gouws, Craig Watterson, Lutfi Al-Sharif, Tarek A Tutunji, Dana Ragab, Grzegorz Klapyta, Tariq Sattar, Ener Salinas, Krzysztof Kluszczynski, Marcin Szczygiel, Zlatov Nikolay, Nathir Rawashdeh, Mohammed Bani Younis, Marek Kciuk, Damian Krawczyk, Reiner Dudziak, Dirk Mohr, Ehab Faidallah, Saber Abdrabbo, Yehia Hossamel-din, Yehia El-Mashad