DB33/T 402.2-2014 The second part of the technical specification for pearl cultivation in river mussels: the technical specification for pearl inoculation and rearing (English Version)
2021DB33/T 402.2-2021 Technical specifications for ecological culture of freshwater pearl mussels
2014DB33/T 402.2-2014 The second part of the technical specification for pearl cultivation in river mussels: the technical specification for pearl inoculation and rearing