?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Muhammad&rft.au=Nadjib%2C+Muhammad&rft.aulast=Nadjib&rft.volume=26&rft.title=Effectiveness+of+capsules+installation+containing+paraffin+wax+in+a+solar+water+heater&rft.atitle=Effectiveness+of+capsules+installation+containing+paraffin+wax+in+a+solar+water+heater&rft.pages=229-236&rft.date=2022&rft.issue=2&rft.genre=article