http://repository.uhamka.ac.id/4332/ Wahjusaputri, Sintha http://repository.uhamka.ac.id/4332/1/jurnal%20agregat%20lkp%20%28sinta-4%29.pdf http://repository.uhamka.ac.id/4332/9/peer%20review%20agregat%20%28sinta-4%29.pdf Silahkan Download Disini!