https://aci.aero/programs-and-services/global-training/airport-operations-diploma/
ACI Airport Operations Diploma | ACI World
The Airport Operations Diploma Program is designed to expose participants to all the facets of activities associated with an airport from airside operations
airport operations diplomaaciworld
https://olc.aero/course/diploma-in-airport-operations-aodp/
Airport Operations Diploma Program (AODP) – Online Learning Centre
airport operations diplomaonline learningprogramcentre