Nuraisyah , A. .; Titien Fatimah , T. F. .; Kusuma , S. I. .; Nugroho , S. A. . Penguatan Teaching Factory (TEFA) Pengolahan Produk Kopi Politeknik Negeri Jember Dalam Penerapan Good Manufacturing Practices (GMP) Guna Meningkatkan Kualitas Dan Legalitas Kopi Bubuk: Strengthening the Teaching Factory (Tefa) Processing of Jember State Polytechnic Coffee Products in the Implementation of Good Manufacturing Practices (GMP) to Improve the Quality and Legality of Ground Coffee . ppm 2024, 6, 50-55.