Christos Harpantidis, The PMI Big Transformation Project - Livemedia - Livestreaming and archiving, broadcasting on demand, conferences, congresses, events, courses, webinars, reportage and news. Livemedia web channel.
Σε ηλικία 90 ετών έφυγε από τη ζωή ο ΧΑΡΠΑΝΤΙΔΗΣ ΙΩΑΝΝΗΣ - Εφημερίδα Ημερήσια Ημαθίας
PDF) Leadership. Leadership theories. From the aristotelian Rhetorician to the modern leader