أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
This depends on the level of employees trained, the subject to be trained and the level of training that is needed.
the most beneficial training in the filed is training with examples given at each new learning material.
Visual training
Must be a full-time employee completely during training to take full advantage of the scientific article, which helps with the field work