in where condition OR operator not working (i am using inner joins)

in where condition OR operator not working (i am using inner joins)

SELECT l~lifnr

l1~name1

b~waers

b~dmbtr

b~zfbdt

b~zbd1t

b~zbd2t

b~zbd3t

b~belnr

b~xblnr

b~shkzg

b~blart

INTO CORRESPONDING FIELDS OF TABLE int_bsik

FROM lfb1 AS l INNER JOIN lfa1 AS l1

ON l_{lifnr = l1}lifnr

INNER JOIN bsik AS b

ON l_{lifnr = b}lifnr AND

l_{bukrs = b}bukrs

WHERE

b_{zfbdt LE p_allgst AND l}bukrs = p_bukrs AND

( l_{lifnr IN s_lifnr OR l1}KTOKK = S_KTOKK OR b~PRCTR in S_PRCTR ).

pls do check this..

thank's in advance