Ang pagpapaunlad ng sarili sa paggawa

Podrobná bibliografie
Hlavní autor:	Agorrilla, Amado L.
Médium:	Kniha
Jazyk:	Filipino
Vydáno:	Manila Bureau of Printing 1939.
Edice:	Philippine adult education series : bulletin no.2
Témata:	Job enrichment. Personnel management.