power jituBuku Metode Jitu Meningkatkan Daya Ingat (memory Power) karya Deasy Harianti. Tahu nggak, Si Super Jenius Einstein hanya menggunakan kemampuan otaknya tidak lebih dari 10%. Dan,Sound technical and tactical strategies will always remain the backbone of success in jiu jitsu; however, developing strength, power, and endurance are now a critical piece to the puzzle