The documents come from different departments by ............... Department Manager/head of the Department, in conjunction with HRD to gather information about education from teaching by OJT.
............... Documents from other departments, the General Manager / Head of HRD, together with information about OJT training by studying the following things.
The document...... from different departments, the Department Manager / chief with HRD gather information about teaching OJT by studying the following things.