Pioneers in green science : beberapa model penerapan konsep ramah lingkungan di Indonesia
oleh Liana Bratasida [and others]
Dian Rakyat, 2011
Buku Teks
Cather, Willa, 1873-1947
O pioneers
Vintage Books, 1992
Buku Teks
Cather, Willa, 1873-1947
O pioneers
A Signet Classic, 1988
Buku Teks
Dutch, Steven I.
Earth science/Steven I. Dutch, James S. Monroe, Joseph M. Moran
Belmont Wadsworth 1997,
Buku Teks
Kohler, Littleton
Contributions of four accounting pioneers
State University , 1951
Buku Teks