@article{{Tropika}{}, author = {eJPT, R.}, title = { cover and preface eJPT 6(1) 2018}, journal = {Jurnal Peternakan Tropika}, volume = {6}, number = {1}, year = {2018}, url = {https://ojs.unud.ac.id/index.php/tropika/article/view/41194} }