Minimalisasi Kekurangan Material melalui Implementasi Quality Control Circle - Panjaitan, Togar W. S.; Fakultas Teknonologi Industri, Jurusan Teknik Industri, Universitas Kristen Petra, Jl Siwalankerto 121-131 Surabya 60238 (Institute of Research and Community Outreach - Petra Christian University, 2012)