<http://schema.org/contactType>
"customer service"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.bukalapak.com/p/hobi-koleksi/buku/hukum/3slqyv-jual-buku-kupas-tuntas-pengawasan-pemeriksaan-dan-penyidikan-pajak-on14664549z>