" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1/3 phi. r^2.t : 4/3 phi . r^2. t : phi r^2. t
dibuat per 3
1/3 phi r^2 t : 4/3 phi r^2 t : 3/3 phi r^2 t
1 : 4 : 3