?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Pinta&rft.au=Pinta%2C+Yani&rft.aufirst=Yani&rft.pages=280-285&rft.atitle=The+Development+of+Chemo-Entrepreneurship+Oriented+Practicum+Guided+for+10th+Grade+in+Senior+High+School&rft.date=2018&rft.issue=2&rft.issn=Online%3A+2509-0119&rft.title=International+Journal+of+Progressive+Sciences+and+Technologies+(IJPSAT)&rft.volume=8&rft.genre=article