Lenni Fitri, author
2014
Artikel Jurnal
Syiah Kuala University. Faculty of Mathematics and Natural Sciences, 2014
Artikel Jurnal
Andi Yasmon, author
2014
Artikel Jurnal
Farmer, R.D.T.
Blackwell Scientific Publ., 1977
Buku Teks
Sheridan, Charles L.
Wiley , 1992
Buku Teks