UMEH, CHIJIOKE SUNDAY; UDENSI, UKAKU SOLOMON; OGBONNA, PEACE NONYE; OKEKE, CHINELO SYBIL. IMPACT OF PLANNING ON ORGANIZATIONAL PRODUCTIVITY IN PRIVATE SECTOR: A STUDY OF PZ CUSSONS PLC AND TONIMAS NIGERIA LIMITED ABA, ABIA STATE, NIGERIA. International Journal of Innovation Research and Advanced Studies, [S. l.], v. 4, n. 2, 2024. Disponível em: https://harvardpublications.com/hijiras/article/view/147.. Acesso em: 28 sep. 2025.