NIM:D01206248. Bibliografi hlm. 117-118.
NIM:D31207060. Bibliografi hlm.108-109.
NIM:D01207162. Bibliografi hlm. 79-80.
NIM:D31207062. Bibliografi hlm.81-83.
NIM:D07208071. Bibliografi hlm. 101-102.
NIM:D07208045. Bibliografi hlm. 84-85.
NIM:D07208048. Bibliografi hlm. 111-112.
NIM:D07208018. Bibliografi hlm. 112-113.
NIM:D07208034. Bibliografi hlm. 85-86.
Some people are not aware that their children have some potention in her/his life.In this case, they feel confuse when they find that teir children get bad score in mathematics, then they deliver t…