Gaya APA

Improving writing skill using grammar-translation method and portfolio assessment (a Classroom action research at the second grade students of MTs Negeri Plupuh in the 2006/2007 academic year). (2014). : Universitas Sebelas Maret.

Gaya MLA

Improving writing skill using grammar-translation method and portfolio assessment (a Classroom action research at the second grade students of MTs Negeri Plupuh in the 2006/2007 academic year). . : Universitas Sebelas Maret, 2014. Thesis.