Koch: haberleri

Billionaire-backed Koch network pulls funding

ABD'nin en varlıklı ailesi, seçimlerde Haley'i destekleyecek

Koch network backs Nikki Haley in the Republican race

Katie Koch documents - 'step dad' boarded up the kids' windows

Widow of billionaire David Koch sells UES mansion for $41 million

Who is Christina Koch? First female astronaut set to orbit the moon