PAT Pool Billard Trainingsheft Stufe 1: Vom routinierten Freizeitspieler zum FortgeschrittenenRalph Eckert
Pool Billiard Workout PAT Start: Includes preliminary stage of the official WPA playing ability test - For beginners to advanced beginnersRalph Eckert
Pool Billiard Workout PAT Level 2: Includes the official WPA playing ability test - For intermediate playersRalph Eckert
Pool Billiard Workout PAT Level 1: Includes the official WPA playing ability test - For beginners to intermediate playersRalph Eckert
PAT Pool Billard Trainingsheft Level 2: Mit dem offiziellen Spielvermögenstest der WPA - Von Landesliga bis etwa OberligaRalph Eckert