https://www.proz.com/personal-glossaries/entry/34666982-acknowledgment-of-service-%D8%A7%D9%84%D8%A5%D9%82%D8%B1%D8%A7%D8%B1-%D8%A8%D8%AA%D9%84%D9%82%D9%8A-%D8%A7%D9%84%D9%85%D8%B3%D8%AA%D9%86%D8%AF%D8%A7%D8%AA-%D8%A7%D9%84%D8%A5%D9%82%D8%B1%D8%A7%D8%B1-%D8%A8%D8%A7%D9%84%D8%AD%D8%B5%D9%88%D9%84-%D8%B9%D9%84%D9%89-%D8%A7%D9%84%D8%AE%D8%AF%D9%85%D8%A9