Echols Famous Roach Tablets 4oz Box (2)

I have a small 1 room studio Apartment. I put out SIXTEEN of these tablets under shelves, under furniture because I like the idea of hiding tablets versus SPRAYING or POWDER...THEY DO NO WORKAT ALL!!Maybe my bugs are smart. But I've had these tablets down for A WEEK & I'm discovering more & more roaches!! They're even NESTING now!!I gotta find something that works...