Bus from Toyama to Shirakawa-go

Hi,

I know there's Nohi Bus connects Toyama and Shirakawa-go.

May I know where is the bus station and where to buy the tickets?

https://www.nouhibus.co.jp/highwaybus/toyama/
If you go on the lowest part of the page, you will see the four panels. The righmost side says these:
富山駅前 - Toyama Eki-mae - Toyama Station
１番のりば - Bus terminal 1
I am not really sure where to buy the tickets if that is in the Toyama Chitetsu ticket center (just outside the JR Toyama Station) or in the bus area already. There is also online reservation thru Japan Bus Online website.

In Shirakawago, the bus stops at Ogimachi. It used to be in Sesaragi Park but Ogimachi is the latest bus stop http://shirakawa-go.gr.jp/othercontents/file/pdf/201610_map_english.pdf.