Common Values in 3 Columns

Couple of more with similar logic from here How to find common values in 3 columns in Excel? and here Finding common values in 3 columns | MrExcel Message Board

=IFNA(
    INDEX( $A$2:$A$19,
           MATCH(0, COUNTIF($H$1:H1, $A$2:$A$19) +
                    IF( IF( COUNTIF($B$2:$B$19, $A$2:$A$19)>0,1,0) +
                        IF(COUNTIF($C$2:$C$8, $A$2:$A$19)>0,1,0)=2,0,1
                    ),
                    0 )
    ),
"" )

and

=IFERROR(
   INDEX( $A$1:$A$19,
          SMALL( IF( ISNUMBER( MATCH( IF( ISNUMBER( MATCH($A$1:$A$19,$B$1:$B$19,0)),$A$1:$A$19),
                                      $C$1:$C$8, 0
                               )
                     ),
                     ROW($A$1:$A$19)
                    ),
          ROWS(E$1:E1))
    ),
"")