Tiyono Tiyono has held various roles in project administration, technician, and office assistance in companies such as PT Multi Kontrol Nusantara, PT. Dentra Mitra Abadi, PT. Karya Putra Dirgantara, PT. Alandick Indonesia, Ssangyong Engineering & Construction Co. Ltd., and PT. Semanggi Cemerlang. Their experience spans over 20 years in the field.
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