Run All test cases through command line with proper sequence

Hello Team ,

what is the code syntax  to run all test cases from mutiple test class file ..

1. Using below syntax as of now i can run test cases from single Test class file 

nunit3-console.exe  D:\TFS\TFSPTCPMO\PTCPMO\Dev\Features\PTCPMO.SeleniumTestCases\bin\Debug\PTCPMO.SeleniumTestCases.dll --where "test =~ /Assessment_Test_Part01/"

public class Assessment_Test_Part01 : BaseTest
{

[Test, TestCaseSource("getData_01")]
public void ACCESSMENT_TEST_001(Dictionary<string, string> data)
{

}

so what code syntax i have to follow  for  test cases in multiple classes