A 50/50 blend of borax and sugar. The sugar will draw them and the borax will kill them. Place in cupboards, small spaces to keep away from children and pets.
You can find the borax at DIY stores and large supermarkets.
No small children or pets.
I live in an apartment building and we had a leaking pipe last year and they (roaches) move in.
I will give a try 😊
No matter what you do, you will always have them until the entire building is properly treated. Call your landlord.