Comparative studies on the validity of the contract. Comparative studies on the validity of the contract Comparative studies on remedy for breach of the contract. Comparative studies on remedy for breach of the contract Comparative studies on tax regimes of BRICS countries He tong xiao li bi jiao yan jiu/: Comparative studies on the validity of the contract, He tong xiao li bi jiao yan jiu =: Comparative studies on the validity of the contract/ He tong xiao li bi jiao yan jiu =: Comparative studies on the validity of the contract / Comparative study of the right of publicity Comparative study on the system of evidence