luanda angola rule mpla party general election take 61.07 percent vote electoral commission say wednesday make jo louren next president sub-saharan africa third-largest economy replace jose eduardo do santos step 38 years helm continue head people movement liberation angola mpla main opposition national union total independence angola unita take 26.67 percent small opposition party casa-ce win 9.44 percent mission accomplish louren tell supporters party headquarter luanda produce good future country people angola say first comment president-elect expect take office sept. 21. unita repeatedly complain electoral process non-transparent illegal decline comment result wednesday spokesman tell reuters statement make thursday unita previously say appeal result speak early wednesday spokeswoman national electoral commission julia ferreira reject opposition complaints lack clarity objectivity add sufficient proof present electoral observers say vote aug 23 reasonably free fair head african union observation mission jose maria neves congratulate angola poll say serve reference continent speak announce definitive election result president national electoral commission andr da silva neto ask party accept election result streets luanda cheer honk horn hear residents celebrate another electoral win mpla maintain unbroken hold power since africa second-largest crude producer gain independence portugal 1975. louren country third president time quiet 63-year-old use army barrack close doors party politics public spotlight deny remain shadow predecessor do santos louren promise kick-start economy rule deal world bank international monetary fund help restructure angola import everything wash powder long-life milk huge cost mpla 150 lawmakers give two-thirds parliamentary majority need pass form legislation angola 's rule mpla win election 61 percent vote electoral commission