I get a few errors, including Hello.obj : error LNK2001: unresolved external symbol _StdOut@4, when I try to link .obj file (ASSEMBLY)?

Question

I am a beginner in assembly. I install masm32..... Getting the .obj file worked perfectly, but when I tried to link it(turn it into .exe file) I got 4 errors. This is my code: `

.386

.model flat,stdcall

option casemap :none
include \masm32\include\windows.inc
include \masm32\include\kernel32.inc
include \masm32\include\masm32.inc

includelib \masm32\include\kernel32.lib
includelib \masm32\include\masm32.lib
.data
HelloWorld db "Hello World!",0
.code
start:
invoke StdOut, addr HelloWorld
invoke ExitProcess,0
end start`

, and here are the errors that I got: `

Hello.obj : warning LNK4033: converting object format from OMF to COFF

Hello.obj : error LNK2001: unresolved external symbol _StdOut@4

Hello.obj : error LNK2001: unresolved external symbol _ExitProcess@4

LINK : error LNK2001: unresolved external symbol _mainCRTStartup

Hello.exe : fatal error LNK1120: 3 unresolved externals

I really don't know what could be the problem, can someone help?