2 3 12 30 July 8, 2019 16 32 64 128 2 3 x 12 30 2 weeks 12 3 30 12 3 30 2 months Zone 2 cardio 12 3 30 12 3 30 2 times a day 10 2 20 vs 12 3 30 12 3 30 zone 2 25 7 2 vs 12 3 30 Hasil dari 30 2 3 12