Your lecturer's response indicates that the diploma program in Human Resource Management at your university does not include a mandatory attachment or internship component as part of the curriculum. This means that, unlike some other programs that require students to complete practical work experience in a real-world setting, your program does not have such a requirement for graduation.
However, even if an attachment is not mandatory, you might want to consider seeking out opportunities for practical experience on your own. Internships or volunteer positions can provide valuable experience, enhance your resume, and help you apply the theoretical knowledge you gain in your studies. You could also discuss with your lecturer or career services at your university about how to find such opportunities if you're interested in gaining practical experience in human resource management.