Optimization of piroxicam tablet formula using flowlac, avicel and compritol by Simplex Lattice Design Method - Suhesti, Tuti; FKIK , Jur. Farmasi Universitas Jendral Soedirman Purwokerto (Faculty of Pharmacy Universitas Gadjah Mada, Yogyakarta, Skip Utara, 55281, Indonesia, 2016)