Answer: Apart from the resources, there are three important factors for production, these are work (people or man hours available), investment (machinery and equipment needed) and organization (business planning).
Explanation: The first three factors were selected by the classical economy where Adam Smith and David Ricardo appeared, to these other organizational factors have been added, however their objective is the same, so that a company achieves the goals set, it has the task of combining these factors in the best way possible. Example: maximize man hours, use the best machinery, that the land or resources are prepared for production.