The implementation of the work on the Bagan Jaya-Kuala Enok-Rumbai Jaya-Tempuling-Tembilahan Road Preservation Supervision between the Directorate General of Highways of Riau Province and PT. Arci Pratama Consultant And CV. Buhara Persada has violated the contents of the contract, meaning that the supervision work is not effectively carried out by PT. Arci Pratama consultant and CV.Buhara Persa…