References
Johann Friedrich Herbart
1776-1841
German philosopher, psychologist and founder of pedagogy as an academic discipline.
Warning: mysqli_connect(): (HY000/2002): Cannot assign requested address in /home/clients/b010bcc84441ff7c5adbaf4e922effaa/web/ocoph/UtilSite/GenDBconnect.php on line 15
Cannot connect to DataBase