Student's Review
February 02, 2020
Sultan Melike T.
Turkey, Ankara
İlginç bilgilerin yer aldığı keyifli bir kurs oldu.
January 20, 2018
ALESSANDRO T.
Kenya, Mombasa
Regret not hearing about PH thirty years ago !
May 28, 2022
Alaa A.
Bahrain, Saar
Amazing course learned a lot