Final answer:
The advantages of internal-only recruitment sources are that they are low cost and familiar with organizational culture. However, the disadvantages are that they are limited in supply.
Step-by-step explanation:
The advantages of internal-only recruitment sources are that they are low cost and familiar with organizational culture. This means that they already know the routines and procedures of the company, which can lead to a quicker adjustment and productivity. However, the disadvantages are that they are limited in supply, meaning that the pool of potential candidates is smaller compared to external recruitment sources.