?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Gusmanto&rft.au=Gusmanto%2C+Erwin&rft.aufirst=Erwin&rft.inst=Universitas+Negeri+Padang&rft.date=February+2014&rft.degree=Bachelor%2FSkripsi&rft.title=Analisis+Pengendalian+Persediaan+Batubara+dengan+Metode+Production+Order+Quantity+(POQ)+pada+CV.+Miyor+Sawahlunto.