“Travo Quality Control Analysis In Travo Testing Process Using Six Sigma Method And Quality Control Circle (QCC) In PT. Bambang Djaja: Analisis Pengendalian Kualitas Travo Pada Proses Testing Travo Menggunakan Metode Six Sigma Dan Quality Control Circle (QCC) Pada PT. Bambang Djaja” (2021) Procedia of Engineering and Life Science, 1(2). doi:10.21070/pels.v1i2.925.