Cityneon: Questions

Hi Vincent, thank you for the workshop and I find it really helpful. However, I came across some questions when I am doing my analysis on Cityneon. 

1. Which valuation methods would you recommend to use? I am considering to use price to book ratio as it is an asset-heavy company
2. When I am going through their balance, I realise there is a big amount of asset which is the Amount due from customer. After some research I understand that it is the amount of revenue earned on a contract that has not been billed. Should I include this number into the intangible asset/inventories/trade receivables in the excel sheet?

Thanks!